Modern Humans vs Zoo Animals Comparison

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Questions and Answers

What is the primary point of the comparison between zoo animals and modern humans in the excerpt?

  • The modern human environment is more stressful than a zoo environment, although both are unnatural.
  • Both humans and zoo animals are forced into unnatural habitats, but humans are more aware of the consequences.
  • Modern technology creates new forms of stress for humans which were not experienced by our ancestors.
  • Both humans and zoo animals are negatively impacted by their environments, but humans have the ability to change their environment. (correct)
  • Humans experience stress similar to zoo animals due to confinement, but their stress is caused by self-inflicted behaviors and not external factors.

According to the excerpt, what is the primary reason for the stress modern humans experience?

  • Modern technology, despite improving our lives, simultaneously generates unforeseen stressors for the modern human.
  • We are constantly exposed to more chronic stressors than our ancestors ever faced.
  • The stress caused by modern transportation methods like air travel is detrimental to human health.
  • The modern environment is a product of human ingenuity and is therefore unnatural for the human species. (correct)
  • The constant pursuit of a better quality of life leads to numerous, unforeseen forms of stress.

Which of the following is NOT a stressor that modern humans face, according to the excerpt?

  • Lack of natural resources (correct)
  • Noise
  • Pollution
  • Chronic stress
  • Social isolation

How does the excerpt contrast modern stressors with the stressors faced by our ancestors?

<p>Modern stressors are more chronic, while our ancestors faced more acute and temporary stressors. (A)</p> Signup and view all the answers

What is the main argument presented by the excerpt?

<p>The modern environment is a product of human ingenuity that is inherently unnatural and stressful for humans. (B)</p> Signup and view all the answers

According to the excerpt, how does the modern human environment compare to a zoo environment?

<p>The modern human environment is similar to a zoo environment in its effects on human behavior, but it is self-inflicted. (A)</p> Signup and view all the answers

Which of the following examples is MOST relevant to the concept of chronic stressors as discussed in the excerpt?

<p>Constant exposure to air pollution from traffic. (B)</p> Signup and view all the answers

What is the author's tone in the excerpt?

<p>Empathetic and concerned about the negative impact of the modern environment on human well-being. (C)</p> Signup and view all the answers

What is the main reason humans today experience physiological mismatches with their environment?

<p>Biological evolution has not kept pace with cultural changes. (B)</p> Signup and view all the answers

What are potential consequences of the mismatch between human physiology and modern lifestyles?

<p>Adverse effects on overall health. (C)</p> Signup and view all the answers

What is suggested as a step towards healing the planet?

<p>Reconnecting with natural habitats. (C)</p> Signup and view all the answers

Which of the following is NOT mentioned as a benefit of reconnecting with natural habitats?

<p>Enhancement of technological development. (C)</p> Signup and view all the answers

What is the implication of the statement about toxic chemicals and carbon emissions?

<p>We still have choices in how we live moving forward. (A)</p> Signup and view all the answers

Which of the following is NOT associated with mercury exposure?

<p>Respiratory issues (B)</p> Signup and view all the answers

What is a common misconception regarding thimerosal?

<p>It causes neurological disorders (A), It has been removed from all vaccines (B)</p> Signup and view all the answers

Which class of chemicals is particularly harmful during critical periods of neonatal development?

<p>Pesticides (A)</p> Signup and view all the answers

What significant risk is associated with pesticide exposure in children?

<p>Memory deficits (A)</p> Signup and view all the answers

How do endocrine disruptors primarily affect the reproductive system?

<p>By mimicking or altering hormone effects (A)</p> Signup and view all the answers

Which neurodegenerative condition is particularly linked to pesticide exposure?

<p>Parkinson’s disease (D)</p> Signup and view all the answers

What can atypical levels of sex hormones in humans lead to?

<p>Irregular prenatal genital development (D)</p> Signup and view all the answers

What effect do phthalates have on hormone function?

<p>Disrupt androgen functions (B)</p> Signup and view all the answers

Which of the following endocrine disruptors mimics estrogen?

<p>BPA (A)</p> Signup and view all the answers

What factor is a primary reason for the increase in pesticide use since 1995?

<p>Crop protection needs (D)</p> Signup and view all the answers

What is one documented effect of endocrine disruptors on women's health?

<p>Early onset of puberty (A)</p> Signup and view all the answers

What is a key characteristic of pesticides?

<p>They are designed to kill unwanted organisms (B)</p> Signup and view all the answers

Which of the following statements about neurodevelopmental disorders is accurate?

<p>Exposure to certain chemicals can contribute to their development. (D)</p> Signup and view all the answers

What percentage of children under 8 had used a mobile device for media in 2013?

<p>72% (D)</p> Signup and view all the answers

Which outcome is associated with heavy use of electronic devices according to large-scale studies?

<p>Lower psychological well-being (B)</p> Signup and view all the answers

What negative impact does solitary screen time have on children under 2 years old?

<p>Adversely affects cognition (B)</p> Signup and view all the answers

What behavior is common among preoccupied parents who use smartphones around their toddlers?

<p>Mindlessly using devices (A)</p> Signup and view all the answers

Which of the following is a consequence of sedentary lifestyles among industrialized populations?

<p>Higher rates of cardiovascular disease (A)</p> Signup and view all the answers

According to studies, how does sitting affect life expectancy?

<p>Shortens life expectancy by twenty-two minutes per hour (C)</p> Signup and view all the answers

What type of relationship is indicated between screen time for children and psychological outcomes?

<p>Positive correlation with behavior problems (C)</p> Signup and view all the answers

What does the phrase 'sitting is the new smoking' imply about current health trends?

<p>Sitting is equally harmful as smoking (D)</p> Signup and view all the answers

Which benefit is associated with regular physical activity?

<p>Regulation of hormones (C)</p> Signup and view all the answers

What is a potential impact of sedentary behavior on sexual health, according to studies?

<p>Increased rates of sexual dysfunction (C)</p> Signup and view all the answers

How does the modern sedentary lifestyle indirectly affect the environment?

<p>Increases ecological footprints (C)</p> Signup and view all the answers

What physical harm is associated with prolonged sitting time?

<p>Increased risk of metabolic disorders (B)</p> Signup and view all the answers

What does movement throughout the day benefit, according to research?

<p>Improves social interactions (C)</p> Signup and view all the answers

How should people adapt their daily routines for better health?

<p>Incorporate more intermittent activity (C)</p> Signup and view all the answers

What paradox describes the situation where people in developed nations are both overfed and undernourished?

<p>The double burden of malnutrition (D)</p> Signup and view all the answers

Which of the following factors is NOT mentioned as contributing to obesity in developed countries?

<p>Consumer awareness of nutrition (B)</p> Signup and view all the answers

What has been tracked by public health experts since 1980 regarding global health trends?

<p>Upward trend in overweight and obesity (A)</p> Signup and view all the answers

What are ultra-processed foods typically high in that contributes to metabolic syndrome?

<p>Sugar in various forms (C)</p> Signup and view all the answers

The correlation between time spent watching television and dietary habits in Canadian children indicates that television viewing is linked to higher consumption of what?

<p>Soft drinks and junk food (D)</p> Signup and view all the answers

What does increased consumption of sugar lead to in the metabolic system?

<p>Insulin resistance (C)</p> Signup and view all the answers

What is a major consequence of multitasking as observed in college students?

<p>Decreased recall from lectures (A)</p> Signup and view all the answers

What is a significant reason many people feel hungrier despite eating?

<p>Consuming nutritionally deficient foods (C)</p> Signup and view all the answers

How often did college students distract themselves during a three-hour study session, according to observational studies?

<p>Thirty-five times (C)</p> Signup and view all the answers

Which of these conditions is a primary risk factor for diabetes and heart disease linked to unhealthy eating?

<p>Metabolic syndrome (D)</p> Signup and view all the answers

What is a significant factor that contributes to information overload in today's society?

<p>The abundance of available content (A)</p> Signup and view all the answers

Which of the following is cited as an example of a life-threatening hazard linked to multitasking?

<p>Texting while driving (D)</p> Signup and view all the answers

What cultural practice from mid-20th century America contributed to the rise of eating on the go?

<p>The rise of car culture (C)</p> Signup and view all the answers

Which demographic is particularly affected by the paradox of being obese and malnourished?

<p>People living in poverty with limited access to high-quality food (B)</p> Signup and view all the answers

What term was once used in the 1980s to describe the challenges associated with adapting to computer culture?

<p>Technostress (B)</p> Signup and view all the answers

What type of disorders have been notably increasing in prevalence among US children aged 3–17?

<p>Developmental Disabilities (A)</p> Signup and view all the answers

Survey results indicate that what percentage of parents felt their teens were addicted to mobile devices?

<p>40% (A)</p> Signup and view all the answers

What impact does overeating junk food have on health, aside from weight gain?

<p>Cognitive decline (A)</p> Signup and view all the answers

What is one potential preventable risk factor contributing to and rising prevalence of neurodevelopmental disorders?

<p>Toxic Exposures (D)</p> Signup and view all the answers

Which of the following is NOT mentioned as a way children are commonly exposed to toxicants?

<p>Drinking from bottled water (A)</p> Signup and view all the answers

What societal factor is associated with the rising trend of obesity and unhealthy eating habits in developing countries?

<p>Adoption of US cultural lifestyle and diet (B)</p> Signup and view all the answers

Which factor is indicated as a reason for the fast-paced lifestyle impacting our brains ability to keep up?

<p>Exponential increase in technology (D)</p> Signup and view all the answers

What percentage of the countries worldwide had set limits on lead paints by 2018?

<p>37% (B)</p> Signup and view all the answers

What has been a historical change in food consumption since the 1970s that affects health?

<p>Rise of packaged and processed foods (A)</p> Signup and view all the answers

What was the behavior of individuals engaging in excessive online interactions described as?

<p>Addictive behavior (B)</p> Signup and view all the answers

What percentage of respondents across multiple countries admitted to feeling addicted to their devices?

<p>40% (D)</p> Signup and view all the answers

What has contributed to the reduction of micronutrients in fruits and vegetables since the 1950s?

<p>Industrial agricultural practices that maximize yield (C)</p> Signup and view all the answers

What type of diet is commonly represented by the acronym SAD?

<p>Standard American Diet (A)</p> Signup and view all the answers

What severe health condition can arise due to lead exposure in children?

<p>Severe Symptoms of Schizophrenia (B)</p> Signup and view all the answers

What is the primary way both children and adults are exposed to mercury?

<p>Consumption of contaminated fish (D)</p> Signup and view all the answers

Which farming practice is associated with higher levels of antioxidants in crops?

<p>Organic farming (C)</p> Signup and view all the answers

Which form of multitasking is noted for its negative impact among college students?

<p>Online chatting during lectures (A)</p> Signup and view all the answers

What is one misconception people have about their ability to multitask?

<p>They overestimate their abilities (B)</p> Signup and view all the answers

Why is meat from factory farming considered less nutritious?

<p>Animals are fed unnatural grain-based diets (B)</p> Signup and view all the answers

What is recognized as the best nutritional option for nursing infants despite the risk of toxicant exposure?

<p>Breast milk (B)</p> Signup and view all the answers

What is the implication of planned obsolescence in technology?

<p>Users become overwhelmed with continuous updates (B)</p> Signup and view all the answers

What is a significant consequence of consuming convenience foods?

<p>They lead to increased solid waste (B)</p> Signup and view all the answers

What chemical is associated with both environmental contamination and industrial activities, increasing its levels in the ecosystem?

<p>Mercury (C)</p> Signup and view all the answers

What government agency revised fish consumption guidelines for children and pregnant women due to nutritional concerns?

<p>Food and Drug Administration (A)</p> Signup and view all the answers

What is often overlooked by conventional medicine in relation to patient health?

<p>Nutrient density in diets (C)</p> Signup and view all the answers

What percentage of students surveyed admitted to texting while asleep?

<p>50% (D)</p> Signup and view all the answers

Which statement best reflects modern dietary practices regarding meat consumption?

<p>Using all parts of an animal is ecologically responsible. (A)</p> Signup and view all the answers

Which generation's home computing advancements began the widespread use of personal computers?

<p>The 1980s (B)</p> Signup and view all the answers

What increase in prevalence was observed for autism spectrum disorders from 2000 to 2014?

<p>It doubled (B)</p> Signup and view all the answers

In what way do multitaskers who are well-practiced differ from less adept individuals?

<p>They show no deficits in performance (A)</p> Signup and view all the answers

What dietary approach may help address global population sustainability?

<p>Transitioning to a plant-based diet (C)</p> Signup and view all the answers

Which developmental disorder showed an increase from 8.5% to 9.5% in prevalence between 2000 and 2014?

<p>ADHD (C)</p> Signup and view all the answers

What is the stance of scientists and health professionals regarding the safety of lead exposure in children?

<p>There is no safe level (D)</p> Signup and view all the answers

What have studies indicated about the relationship between diet and mental health?

<p>Healthier diets can improve mental and behavioral health. (A)</p> Signup and view all the answers

What aspect of human health does dietary quality particularly affect?

<p>Behavior and mental health (A)</p> Signup and view all the answers

Which of the following is NOT mentioned regarding household chemicals and children's exposure?

<p>Use in safe areas protects children (C)</p> Signup and view all the answers

What effort was launched in 2015 to target environmental neurodevelopment risks?

<p>Project TENDR (A)</p> Signup and view all the answers

Why do many find it challenging to shift away from modern dietary habits?

<p>Life in industrialized nations is stressful and complex. (C)</p> Signup and view all the answers

What role does sustainable farming play in food production?

<p>It encourages biodiversity and nutrient replenishment. (B)</p> Signup and view all the answers

What is the primary role of light as a zeitgeber?

<p>It synchronizes circadian rhythms. (C)</p> Signup and view all the answers

How does blue light from screens affect melatonin production?

<p>It suppresses melatonin production. (C)</p> Signup and view all the answers

What does transitioning health care focus on in urban versus rural populations?

<p>Better access to healthful foods for marginalized groups (B)</p> Signup and view all the answers

What is an example of light pollution?

<p>The ambient light from street lamps and buildings. (C)</p> Signup and view all the answers

What is often the first consideration for veterinarians when assessing an animal's health?

<p>The animal's dietary history (A)</p> Signup and view all the answers

What is a effect of food additives on physical health?

<p>They may negatively influence overall system functioning. (C)</p> Signup and view all the answers

Which of the following groups is disproportionately affected by ambient light exposure in the United States?

<p>Asian, Hispanic, and Black Americans (A)</p> Signup and view all the answers

What significant change did Slovenia make regarding light pollution?

<p>Established the first light pollution legislation. (D)</p> Signup and view all the answers

What negative impact does urban noise have on people?

<p>It causes sleep disturbances and stress. (A)</p> Signup and view all the answers

What was a significant finding of the first official report on global light pollution?

<p>Two-thirds of the US population cannot see the Milky Way. (B)</p> Signup and view all the answers

How does light pollution affect wildlife?

<p>It disrupts feeding and breeding behaviors of species. (D)</p> Signup and view all the answers

What legislation did France implement regarding light pollution?

<p>Regulations for public and private property lighting. (C)</p> Signup and view all the answers

What effect does urban living have on sleep patterns?

<p>It disrupts sleep due to noise and light exposure. (A)</p> Signup and view all the answers

What is chronodisruption?

<p>A disturbance of circadian rhythms. (A)</p> Signup and view all the answers

What is one of the proposed solutions to light pollution?

<p>Developing guidelines for responsible outdoor lighting. (B)</p> Signup and view all the answers

What coping mechanisms might people use to deal with sleep disruption in urban areas?

<p>Relying on stimulants like coffee and energy drinks. (D)</p> Signup and view all the answers

What paradox does modern society face according to the text?

<p>Being both the most productive and least active. (B)</p> Signup and view all the answers

What is one of the main themes discussed about pollution?

<p>What is harmful to the planet is also harmful to humanity. (A)</p> Signup and view all the answers

What does the term 'toxic' refer to in the context of pollutants?

<p>A poisonous substance posing a risk to health. (D)</p> Signup and view all the answers

What is one reason it is difficult for researchers to determine the effects of toxicants?

<p>There is a lack of exposed populations to compare with. (D)</p> Signup and view all the answers

How can chronic low-level exposures to toxicants be more dangerous than acute exposures?

<p>Chronic exposure may have insidious effects over time. (B)</p> Signup and view all the answers

What is the assumption of toxicology regarding the risk of substances?

<p>Only high doses can result in serious health impacts. (A)</p> Signup and view all the answers

What critical periods are especially vulnerable to toxic exposure?

<p>Prenatal and early postnatal development. (A)</p> Signup and view all the answers

What is a significant challenge in studying environmental toxicants?

<p>Experiments typically analyze only one or two compounds at a time. (A)</p> Signup and view all the answers

Why is regulatory action towards toxic chemicals often considered reactionary?

<p>Chemicals are presumed safe until proven dangerous. (D)</p> Signup and view all the answers

Which of the following substances is considered toxic?

<p>Lead (C)</p> Signup and view all the answers

What is one of the major health hazards attributed to air pollution?

<p>Cardiovascular and respiratory impacts (C)</p> Signup and view all the answers

What environmental injustice issue is highlighted in the text?

<p>Communities of color are disproportionately targeted for toxic facilities. (A)</p> Signup and view all the answers

What is the Toxic Substances Control Act criticized for?

<p>It does not mandate testing for risks to human health. (D)</p> Signup and view all the answers

Which factor exacerbates the effects of air pollution according to recent studies?

<p>Changing climate patterns (B)</p> Signup and view all the answers

Which of the following is true about the effects of chemical exposures on individuals?

<p>Some populations may exhibit greater vulnerability due to genetic factors. (B)</p> Signup and view all the answers

What are some health issues that climate change is reported to worsen?

<p>Respiratory conditions like asthma (A)</p> Signup and view all the answers

Who is particularly vulnerable to the impacts of climate change as mentioned in the content?

<p>Disadvantaged and marginalized society members (B)</p> Signup and view all the answers

What does the term 'toxic soup' refer to?

<p>The cumulative effect of many toxic exposures. (D)</p> Signup and view all the answers

How is the long latency period of toxic effects problematic?

<p>It makes it hard to establish cause-and-effect relationships. (D)</p> Signup and view all the answers

What mental health issues could increase due to climate change consequences?

<p>Post-traumatic stress disorder and anxiety (A)</p> Signup and view all the answers

What role does poor nutrition play in the effects of toxicants?

<p>It can magnify the toxic effects experienced. (D)</p> Signup and view all the answers

Which country mentioned has a per capita carbon emissions rate so low that it is sometimes rounded to zero?

<p>Burundi (D)</p> Signup and view all the answers

What negative effect do endocrine disruptors have as per decades of research?

<p>Impact on development related to gender identity (D)</p> Signup and view all the answers

What is a significant consequence of heat and humidity extremes on the human body?

<p>Overwhelmed ability to cool itself (D)</p> Signup and view all the answers

Which of the following best describes the relationship between climate change and health infrastructure?

<p>Health infrastructure may be adversely impacted by climate change (D)</p> Signup and view all the answers

Which of the following represents a systems-level consequence of introducing synthetic chemicals?

<p>Unforeseen negative effects in real-world interactions (C)</p> Signup and view all the answers

Which statement reflects a misconception about the relationship between pollution and health?

<p>Air pollution has no effect on health (A)</p> Signup and view all the answers

How is climate change linked to food security?

<p>It reduces access to nutritious food and clean water (C)</p> Signup and view all the answers

What effect do greenhouse gas emissions have on air quality?

<p>They are linked to poor air quality and health risks (A)</p> Signup and view all the answers

What is one primary health effect related to chemical emissions from various sources?

<p>Adverse neurodevelopmental effects (B)</p> Signup and view all the answers

What is the main idea of the provided text?

<p>Modern industrialized lifestyles create chronic stress, disrupting our natural rhythms and contributing to various health issues such as sleep deprivation, inactivity, and malnutrition. (B)</p> Signup and view all the answers

According to the passage, what is the main reason why modern lifestyles have a negative impact on human health?

<p>Humans are not adapted to the fast-paced, demanding nature of modern life. (B)</p> Signup and view all the answers

What is the author's primary purpose in describing the evolutionary process in the context of modern life?

<p>To illustrate the slow pace of human evolution, which makes us vulnerable to modern stressors. (C)</p> Signup and view all the answers

Which of the following is NOT mentioned as a potential consequence of chronic stress?

<p>Increased risk of developing autoimmune diseases. (D)</p> Signup and view all the answers

What is the key takeaway from the information about sleep deprivation?

<p>Sleep is crucial for restoring our bodies and minds, and chronic sleep deprivation has serious consequences. (D)</p> Signup and view all the answers

Which aspect of modern living IS NOT highlighted as a major contributor to stress and health problems?

<p>The widespread availability of unhealthy processed foods and sugary drinks. (A)</p> Signup and view all the answers

How do biological needs and rhythms factor into the argument about modern lifestyles?

<p>All of the above. (D)</p> Signup and view all the answers

The text mentions that “stressors are not necessarily bad.” What is the author referring to?

<p>Stress can be helpful in short bursts, but prolonged stress is detrimental to our health. (B)</p> Signup and view all the answers

Based on the information presented, which statement best reflects the author's perspective on the relationship between modern lifestyles and human health?

<p>While modern lifestyles pose challenges to our health, we can mitigate these risks by understanding our biological needs and adjusting our lifestyles accordingly. (A)</p> Signup and view all the answers

The text cites “evidence to suggest that humans may have experienced some more rapid spurts of change” after the development of agriculture. What does this evidence suggest?

<p>Humans have evolved at a faster rate since the development of agriculture, compared to previous periods. (A)</p> Signup and view all the answers

Which of the following is NOT a factor mentioned in the text as contributing to the mismatch between our preindustrial physiology and industrial lifestyle?

<p>The lack of access to clean water and sanitation in many parts of the world. (A)</p> Signup and view all the answers

The expression “I’ll sleep when I’m dead” is used to highlight what sentiment about sleep in modern society?

<p>All of the above. (D)</p> Signup and view all the answers

The text states that "the two centuries that separate the preindustrial era from today have not been a long enough period for any widespread evolutionary change in humans.” What does this mean?

<p>Our evolution is a slow process, and our bodies have not had enough time to adapt to the changes brought about by industrialization. (A)</p> Signup and view all the answers

The text mentions that “historical records suggest ten hours in bed was the norm prior to the late 19th century.” What is the significance of this information?

<p>Modern sleep patterns have deviated significantly from our historical norms, indicating a potential problem. (A)</p> Signup and view all the answers

What is the primary message conveyed by the statement “What’s bad for the planet is bad for us”?

<p>The health of the planet and the health of humans are inextricably linked. (C)</p> Signup and view all the answers

What is the main reason why biological needs, rhythms, or systems are disrupted by many aspects of modern living?

<p>All of the above. (D)</p> Signup and view all the answers

Which of the following factors is NOT a reason why the Lautenberg Chemical Safety Act has had limited success in protecting human health?

<p>The lack of scientific evidence for the toxicity of most chemicals. (A)</p> Signup and view all the answers

What is the key principle adopted by the European Union in its chemical safety legislation?

<p>The precautionary principle, which prioritizes action even with limited scientific certainty. (A)</p> Signup and view all the answers

What is the primary reason why many potentially toxic chemicals have not been specifically tested for their health risks?

<p>The lack of available funding for toxicological studies. (C)</p> Signup and view all the answers

What is the main difference between mutagens and teratogens?

<p>Mutagens cause genetic mutations, while teratogens disrupt prenatal development. (A)</p> Signup and view all the answers

Which of the following is NOT an example of a persistent bioaccumulative toxic pollutant (PBT)?

<p>Phthalates (A)</p> Signup and view all the answers

What is the main reason why bioaccumulation of PBTs is a serious environmental concern?

<p>PBTs can build up in the food chain, posing increasing risks to higher trophic levels. (B)</p> Signup and view all the answers

How do endocrine disrupters affect human health?

<p>They interfere with the production and function of hormones, leading to various health issues. (A)</p> Signup and view all the answers

What is the main difference between the Lautenberg Chemical Safety Act and the European Union's REACH program?

<p>The Lautenberg Act places the burden of proof on the government, while REACH places it on chemical manufacturers. (C)</p> Signup and view all the answers

What is the significance of the statement that "virtually every resident of the United States now carries PFAS in their bodies"?

<p>It highlights the widespread exposure to PFAS in the environment. (D)</p> Signup and view all the answers

What is the main conclusion that can be drawn from the information provided about PBTs?

<p>PBTs are a significant threat to human health due to their persistence, bioaccumulation, and biomagnification. (C)</p> Signup and view all the answers

Why are epigenetic effects particularly concerning in the context of toxicant exposure?

<p>They can be passed down to future generations, affecting the health of offspring. (A)</p> Signup and view all the answers

Which of the following statements accurately describes the relationship between triclosan and dioxins?

<p>Triclosan is a synthetic chemical that produces dioxins when exposed to sunlight, such as in wastewater. (D)</p> Signup and view all the answers

What is the significance of measuring PFAS levels in blood, urine, and breast milk?

<p>It can be used to assess the overall body burden of PFAS and identify vulnerable populations. (A)</p> Signup and view all the answers

Which of the following statements best reflects the central message of the provided text?

<p>While the Lautenberg Chemical Safety Act has made progress, more needs to be done to protect human health from chemical exposures. (A)</p> Signup and view all the answers

What is the main implication of the statement that "there is no way to cleanse oneself of these chemicals"?

<p>It highlights the need for stricter regulations to limit exposure to PBTs. (B)</p> Signup and view all the answers

Based on the text, which of the following scenarios is most likely to contribute to increasing levels of PFAS in humans?

<p>The popularity of non-stick cookware in homes (D)</p> Signup and view all the answers

Flashcards

Stress

A state of mental and physical tension caused by challenging or demanding situations.

Acute Stress

A type of stress that is caused by external factors and is immediate and temporary.

Chronic Stress

A type of stress that is ongoing and long-lasting, often caused by chronic exposure to stressors.

Natural Habitat

The natural environment where a particular species has evolved and adapted to live.

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Industrialized Environment

The modern, industrialized environment, often characterized by rapid changes, technology, and a sense of artificiality.

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Stressors of the Industrialized Environment

The negative impacts of the industrialized environment on the psychological and physical well-being of humans.

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The Human Zoo

The idea that the modern industrialized environment is not conducive to human well-being and can lead to physical and psychological stressors.

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Modern Stress vs. Ancestral Stress

The comparison between the stress experienced by modern humans in the industrialized environment and that experienced by our ancestors in their natural habitats.

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Environmental stressors

Environmental stressors are aspects of our surroundings that cause us to experience stress.

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Mismatch between physiology & lifestyle

A mismatch between our biology and modern lifestyle can be detrimental to our health.

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Chronic stress effects

Prolonged stress can have negative effects on our health, including raising blood sugar, increasing fat storage, and raising blood pressure.

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Stress & digestive health

Chronic stress can lead to digestive problems such as ulcers, irritable bowel syndrome, and gastric reflux.

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Stress & mental health

Chronic stress can impair memory and concentration as well as contribute to anxiety and depression.

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Importance of sleep

Sleep is essential for bodily functions such as cellular regeneration and repair, immune system activity, and memory consolidation.

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Consequences of sleep deprivation

Lack of adequate sleep can impair memory, learning, and attention as well as increase stress hormones.

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Sleep deprivation & health risks

Sleep deprivation can increase the risk of obesity, diabetes, hypertension, cancer, and heart disease.

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Sleep deprivation & mental illness

Sleep deprivation can increase the risk of mental illnesses such as anxiety and depression.

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Sleep deprivation & long-term consequences

Sleep deprivation can also alter gene expression, accelerate aging, and shorten lifespan.

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Ideal sleep duration

The ideal amount of sleep for humans is closer to ten hours per night, not the often stated eight hours.

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Lifestyle changes since the industrial revolution

The development of agriculture and electricity has drastically changed our lifestyles, leading to a mismatch with our natural biology.

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Human zoo

The term 'human zoo' refers to the mismatch between our biology and the modern lifestyle, creating a stressful environment.

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Zeitgeber

A natural signal that helps synchronize circadian rhythms, like light and darkness.

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Chronodisruption

Disruption of the body's natural sleep-wake cycle, often caused by artificial light exposure at night.

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Melatonin

A hormone crucial for regulating sleep, produced at night in darkness.

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Light Pollution

The unwanted light emitted from artificial sources, like streetlights and billboards, polluting the night sky.

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Habituation to Noise

The ability of the human body to adjust to constant or recurring sound, but without totally eliminating its negative impact.

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Noise Pollution

Unwanted sound that can interfere with sleep and cause stress.

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Overactivity and Inactivity Paradox

The phenomenon of modern society being both very active (work, exercise) and very inactive (sedentary lifestyles).

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Circadian Rhythm

The natural rhythm of the body that regulates sleep-wake cycles, hormone release, and other bodily functions.

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Blue Light

The blue wavelengths in electric light that suppress melatonin production and interfere with sleep.

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Circadian Adaptation

The process of adapting to different time zones by adjusting your sleep-wake cycle.

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Chronodisruption Negative Effects

The adverse effects on health caused by disruption of natural circadian rhythms, particularly sleep.

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24/7 Culture

A pattern of overstimulation and activity, often linked to modern life and its demands.

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Electric Light and Sleep

The use of artificial light at night, even in small doses, that can disrupt sleep and other bodily functions.

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Environmental Impact of Light Pollution

The environmental impact of artificial light, including energy consumption and pollution.

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Light Pollution Inequality

The disproportionate impact of light pollution on certain groups, particularly those with lower socioeconomic status, who are more likely to experience light pollution.

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Multitasking

The act of doing multiple things simultaneously, often involving switching attention rapidly between tasks.

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Attentional Capacity

The ability to focus attention on a single task, resisting distractions.

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Attentional Demands

The negative effect on performance when trying to do multiple things at once, leading to reduced quality and efficiency.

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Overestimation of Ability

The phenomenon where individuals overestimate their ability to multitask, believing they can handle multiple tasks effectively without performance decline.

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Information Overload

The overwhelming amount of information and entertainment available to us today, making it challenging to stay current and avoid information overload.

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Technostress

A type of stress caused by the rapid development and adoption of technology, leading to feelings of being overwhelmed and unable to keep up.

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Planned Obsolescence

Products designed to become obsolete after a short period, encouraging frequent upgrades and purchases.

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Internet Addiction

A type of internet use characterized by excessive and compulsive behavior, potentially leading to addiction.

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Internet Gaming Disorder

A disorder recognized by the DSM-5, involving excessive and compulsive online gaming.

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Device Monitoring Compulsion

The frequent and compulsive checking of devices for messages or updates, often driven by a fear of missing out or a need for constant connection.

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Digital Technology Exposure

The increased exposure of young children to digital technology, contributing to a change in their developmental experiences.

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Reinforcing Online Activities

The tendency for social networking, gaming, and other online activities to be very rewarding, potentially leading to addictive behavior.

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Compulsive Device Use

Survey findings showing that a significant proportion of parents and teens experience compulsive use of mobile devices, highlighting the widespread nature of this behavior.

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Mobile Device Prevalence

The growing presence of mobile devices in the lives of children, adding to their exposure to digital technology.

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Rapid Technological Advancement

The rapid evolution of technology, creating challenges for individuals in adapting to and keeping up with these advancements.

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Undernourished

A nutritional state where someone is not getting all the nutrients they need, despite eating sufficient amounts of food.

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Double Burden of Malnutrition

A condition in which people are both overweight and lacking essential nutrients, often due to a diet high in processed foods and low in whole foods.

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Standard American Diet (SAD)

The typical diet in developed countries, characterized by high calorie intake and limited nutrient content due to high consumption of processed foods.

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Ultra-Processed Foods

Foods that have been heavily processed and often contain added sugars, unhealthy fats, and artificial ingredients.

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Metabolic Syndrome

A condition characterized by high blood pressure, high blood sugar, excess body fat, and abnormal cholesterol levels, increasing the risk of heart disease and diabetes.

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Insulin

A hormone that helps your body use sugar for energy, but can become resistant when sugar intake is high.

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Insulin Resistance

An unnaturally high sugar intake can lead to the body becoming resistant to insulin, making it harder to regulate blood sugar levels.

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Overeating

The act of consuming more calories than your body needs, often leading to weight gain and health issues.

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Food Addiction

The tendency to crave and consume more food as your tolerance for it increases, leading to a cycle of overeating.

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Hunger Motivation

A state of feeling hungry even after eating, often related to consuming nutritionally deficient foods.

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High Fructose Corn Syrup

A type of sugar often found in processed foods, known for its potential to contribute to metabolic issues.

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Metabolism

The process where food is broken down and converted into energy for your body to use.

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Canadian Children Study

A study that found that children who watch more TV tend to consume less fruits and vegetables and more unhealthy foods.

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Slow Food Movement

The practice of eating mindfully, leisurely, and communally, using fresh ingredients and traditional methods.

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Fast Food Culture

The rise of fast food, convenience foods, and eating on the go, often associated with modern society.

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Mobile Device Use in Children

The increasing use of mobile devices among children, particularly those under the age of 8. This trend is considered concerning due to potential adverse effects on cognitive development, social interaction, and overall well-being.

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AAP Recommendations for Screen Time

The American Academy of Pediatrics discourages solitary screen time for children under 2 years old. This is due to the potential negative impact on key developmental areas such as language skills, executive function, and social interaction.

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Heavy Device Use and Mental Health

Heavy use of electronic devices is linked to lower psychological well-being in studies across many populations. While correlation doesn't equal causation, research suggests overuse can negatively impact mental health.

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Social Effects of Excessive Device Use

The excessive use of electronic devices can lead to social isolation, impaired face-to-face communication, and difficulty forming and maintaining meaningful relationships. This can have negative consequences for overall social skills and well-being.

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Impacts on Real World Experiences

The increased reliance on electronic devices may be affecting our ability to fully experience the world around us, including real-life events, personal interactions, and opportunities for spontaneous connections.

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Sitting is the New Smoking

The phrase "sitting is the new smoking" highlights the growing awareness of the health risks associated with sedentary lifestyles, particularly in industrialized nations. Spending too much time sitting can have serious consequences for physical health.

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Rise of Sedentary Lifestyles

Sedentary behaviors, including prolonged sitting, are on the rise across various age groups in industrialized societies. This trend is linked to a variety of factors, including decreased physical activity, changes in the workforce, and increased use of technology.

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Health Risks of Sedentary Lifestyles

Excessive sitting time is associated with increased risk for various health issues, leading to more severe health problems. It is generally associated with a decline in overall health.

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Exercise vs. Sitting

The negative health impacts of sitting can outweigh the benefits of regular exercise. Even though exercise is crucial, prolonged periods of sitting can still raise health risks.

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Benefits of an Active Lifestyle

A more active lifestyle, with regular movement throughout the day, benefits not only physical health but also mental well-being and cognitive function. It can positively impact mood, reduce stress, and boost cognitive performance.

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Activity and Healthy Aging

Maintaining a high level of physical activity is vital for aging gracefully and preventing cognitive decline and dementia. This includes maintaining strength, stamina, and mobility as we age.

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Sustainability and Active Lifestyles

By incorporating more movement into our everyday life, we reduce our reliance on resource-intensive assistive technology and medical care in later years. This promotes sustainability and reduces our ecological footprint.

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Modern Lifestyle Paradox

The modern lifestyle often presents a paradox: we are constantly busy and stressed, yet increasingly sedentary. This imbalance can negatively impact our physical and mental well-being.

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Modern Lifestyle and Health Risks

The combination of high-stress levels and reduced physical activity in modern society poses a serious threat to human health. This combination creates a dangerous imbalance, leading to increased health risks.

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Environmental Toxicants

Chemicals that can harm health, often found in soil, water, and air.

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Toxicants

Substances that can be poisonous and pose health risks, including metals, chemicals, and radioactive waste.

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Dose Makes the Poison

The idea that any substance can cause harm if it reaches a high enough concentration.

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Chronic Toxicity

The harmful effects of exposure to low levels of toxicants over a long period of time.

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Toxicology

The study of the effects of toxic substances on living organisms.

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Developmental Toxicity

The idea that exposure to a toxic substance during certain critical periods of development can have more severe consequences.

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Latency Period

The time delay between exposure to a toxicant and the appearance of its effects.

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Interactive Effects

The idea that different toxic substances can interact with each other to produce more severe effects.

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Environmental Injustice

The principle that certain individuals or communities are disproportionately exposed to environmental hazards.

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Reactionary Regulation

The process of regulating chemicals based on evidence of harm, rather than proactively preventing their use.

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Innocent Until Proven Guilty

The process that prioritizes the safety of chemicals until they are proven harmful.

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Toxic Substances Control Act (TSCA)

A law requiring manufacturers to register chemicals with the EPA, but without specific testing requirements for health risks.

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E-Waste Dumping

The practice of dumping electronic waste in developing countries, often exposing local communities to hazardous materials.

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Bioaccumulation

The tendency for toxicants to accumulate in living organisms over time, especially in higher predators.

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Placental Transfer

The ability of toxic substances to cross the placenta and affect the developing fetus.

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Nutrient depletion in modern produce

Industrial agriculture focuses on maximizing yields, often neglecting nutritional quality, resulting in produce with lower micronutrient content than in the 1950s.

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Antioxidants in organic produce

Organic crops contain significantly higher levels of antioxidants compared to non-organic crops. This is due to sustainable farming practices that replenish soil nutrients and maintain genetic diversity.

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Nutritional differences in meat

Factory-farmed meat lacks the healthy fatty acids and antioxidants found in pasture-raised or wild meat due to grain-based diets that are not natural for these animals.

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Nose to tail eating

The practice of consuming all parts of an animal (nose to tail), including organs, bones, and connective tissues, is beneficial for health and reduces waste, as these parts are rich in essential nutrients.

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Convenience foods vs. whole foods

Convenience foods, often packaged in processed forms, are generally less nutritious than whole foods, and contribute to solid waste generation.

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Muscle meat vs. organ meat

Prioritizing muscle meats (steak, chicken breast) over organ meats (liver, heart) is a dietary pattern common in industrialized countries, leading to a deficiency of essential nutrients.

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Plant-based vs. animal-based diet

A plant-based diet is considered a more sustainable option for feeding a growing global population compared to an animal-based diet, which requires significant resources to produce.

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Nutrition's impact on mental health

The importance of nutrition for mental and behavioral health is increasingly recognized, with studies linking a healthier diet to improved mental well-being in both children and adults.

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Dietary interventions for mental health

Even though causality cannot be definitively established, experimental evidence suggests that dietary changes can positively impact mental and behavioral health, as demonstrated in studies involving children with ADHD.

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Mismatch between biology and modern lifestyle

Our modern lifestyle, driven by technology and convenience, often conflicts with our biological needs, creating a mismatch that leads to stress and health issues.

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Sleep deprivation's consequences

Sleep deprivation, a common problem in industrialized societies, has detrimental effects on physical and mental health, including memory impairment, stress hormone increase, and increased risk of chronic diseases.

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Personal strategies for a healthier lifestyle

Making changes to our sleep schedules, activity levels, and diets can improve overall well-being and reduce the negative impacts of our modern lifestyle.

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Societal changes for healthier living

Transforming infrastructure and systems to support healthy living for everyone, especially marginalized communities, can promote healthier outcomes for individuals and society.

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Policy focus on environmental stressors

Policymakers should prioritize addressing environmental stressors as public health hazards with social justice implications to ensure sustainable health outcomes for all.

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Resilience in the face of modern stressors

While some modern stressors cannot be completely eliminated, striving to reduce their impact through lifestyle changes and systemic transformations can lead to a more sustainable and healthy future.

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Persistent Chemicals

These chemicals can linger in the environment for a very long time without breaking down.

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Bioaccumulative Chemicals

These chemicals build up in living things over time.

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PBTs

Persistent Bioaccumulative Toxic Pollutants (PBTs) are chemicals that are both persistent and bioaccumulative, and also pose significant threats to the environment and human health.

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Biomagnification

The process of biomagnification occurs when chemicals that have accumulated in the body increase in concentration as they move up the food chain.

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Neurotoxins

Chemicals that affect the nervous system.

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Mutagens

Chemicals that cause genetic mutations.

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Carcinogens

Chemicals that cause cancer.

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Teratogens

Chemicals that interfere with prenatal development.

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Endocrine Disrupters

Chemicals that disrupt the endocrine system, which is responsible for hormone production and regulation.

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Epigenetic Effects

These effects involve changes in the way genes are expressed without altering the DNA sequence. They can have a lasting impact even across generations.

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Precautionary Principle

A policy that emphasizes the need to take precautionary measures even in the absence of complete scientific certainty about potential risks, especially when the stakes are high for human health or the environment.

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REACH

The Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) is a European Union regulation that aims to ensure the safe use of chemicals.

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Body Burden

The total amount of chemicals found in an organism's body.

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Biomonitoring

Chemicals that can be measured in blood, urine, and breast milk. They are used to assess exposure levels, identify trends over time, and highlight specific populations at risk.

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An Ounce of Prevention

The idea that prevention is more effective than trying to address issues after they have occurred.

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Project TENDR

A project aimed at reducing toxicant exposures that contribute to neurodevelopmental disorders.

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Lead

A naturally occurring heavy metal that can cause significant harm to children's developing brains.

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Blood Lead Level

A measure of the amount of lead in a person's blood.

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Mercury

A naturally occurring heavy metal that can be harmful to human health, especially for children.

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Detrimental Effects of Lead

The range of harmful effects associated with lead exposure, including cognitive deficits, behavioral issues, and mental health problems.

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No Safe Level of Lead Exposure

The scientific consensus that even small amounts of lead exposure can be harmful to children.

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Mercury in Fish

The primary source of mercury exposure for humans, due to the accumulation of mercury in seafood.

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Fish Consumption Guidelines

A set of guidelines issued by the Food and Drug Administration regarding fish consumption, especially for vulnerable populations.

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Mercury's Toxic Effects

The widespread and varied effects of mercury toxicity on multiple body systems.

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Mercury Release

The release of mercury into the environment from various sources, including industrial activities and waste disposal.

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Mercury Contamination in Fish

The increasing levels of mercury in fish due to overfishing and climate change.

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Methylmercury

The process by which mercury is transformed into a more toxic form that can accumulate in the food chain.

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Low-Mercury Fish

The recommendation to consume fish low in mercury, such as salmon and tuna, to reduce exposure to toxicants.

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Xenoestrogens

Chemicals that mimic the effects of estrogen in the body, affecting both men and women.

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Mercury's Impact on Health

Mercury, a heavy metal, can lead to intellectual, attention, and memory deficits, as well as psychotic symptoms and autism spectrum disorders.

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Pesticide Risks

Pesticides, designed to protect crops and control pests, can harm humans and other unintended targets, especially during vulnerable periods of development.

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Unintended consequences of synthetic chemicals

Unforeseen negative consequences arising from the introduction of synthetic chemicals into the environment.

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Air pollution

Air pollution caused by a combination of industrial emissions, waste incineration, and fossil fuel combustion.

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Toxicant research

The study of how environmental toxicants impact human health, often examining their effects in isolation.

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Synergistic effects of chemicals

The interaction of different synthetic chemicals in the environment, potentially creating more complex and harmful effects.

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Air pollution and neurodevelopment

The increasing link between air pollution and negative neurodevelopmental effects in children, both before and after birth.

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Climate change and air pollution

The combined impact of climate change and air pollution, making human health more vulnerable to a range of threats.

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Climate change amplifying air pollution

The phenomenon where climate change intensifies the harmful effects of air pollution, creating more severe consequences.

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Climate change and mental health

The psychological and emotional distress caused by climate change, including anxiety, depression, and post-traumatic stress disorder.

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Human body's cooling capacity

The capacity of the human body to cool itself, which can be overwhelmed by extreme heat and humidity.

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Climate change and disease spread

The increasing spread of pest-borne diseases such as malaria, Zika, and dengue fever due to warming temperatures.

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Health impacts of climate change

The health impacts of climate change, including malnutrition, infectious diseases, and mental health issues, making people more vulnerable to air pollution.

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Climate change and habitat alteration

The effects of climate change on natural habitats, including desertification, floods, wildfires, and rising sea levels, posing direct threats to human well-being.

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Interconnectedness of human and planetary health

The combined effect of climate change and environmental toxins on human health, highlighting the interconnectedness of these problems.

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Climate change resilience

The ability of societies to cope with and adapt to the challenges of climate change, which is often hindered by existing social inequalities.

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Human-Environment Mismatch

The mismatch between our evolved biology and the modern industrialized environment, leading to stress and health problems.

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Biological Lag

The rapid pace of cultural evolution has outpaced our biological evolution, leaving us ill-equipped to handle the stressors of modern life.

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Study Notes

Modern Stressors and Human Health

  • Modern industrialized environments are not conducive to human health, creating chronic stress unlike acute stressors faced by ancestors.
  • Technological advancements like airplanes, while improving travel, introduce chronic stressors like pollution and noise.
  • The pace of industrialization outpaces human evolution, leading to physiological mismatch between preindustrial physiology and modern lifestyles. This contributes to stress-related health problems.
  • Chronic stress leads to elevated hormones, increasing risk of diabetes, obesity (especially abdominal fat), high blood pressure, heart disease, stroke, digestive problems, memory/concentration issues, anxiety, depression, and susceptibility to infections.

Sleep Deprivation

  • Adequate sleep is crucial for bodily functions like cellular repair, immune function, and memory consolidation.
  • Chronic sleep deprivation is linked to significant academic problems, comparable to impacts of binge drinking or marijuana use among college students.
  • Humans ideally need more than eight hours of sleep per night; historical records suggest ten hours were common before electric lights.
  • Artificial light, specifically blue wavelengths from electronic devices, suppresses melatonin and disrupts circadian rhythms.
  • Light pollution from urban environments further interferes with sleep. The availability of light at night disrupts sleep patterns for humans.

Overactivity and Inactivity

  • Modern life involves both overactivity (e.g., multitasking, electronic distractions) and inactivity (sedentary lifestyles).
  • Multitasking negatively impacts cognitive performance, reducing effectiveness in multiple tasks.
  • Dependence on electronic technology, social media, and gaming create compulsive behavior.
  • Sedentary lifestyles are associated with increased risks of type 2 diabetes, cardiovascular disease, and other health problems; even more hours spent watching TV correlates with shorter lifespan.
  • Sitting is a major contributor to health problems, regardless of activity level.

Malnutrition

  • While global food insecurity and malnutrition are prevalent in developing countries, individuals in developed nations experience malnutrition due to an excess of readily available processed foods.
  • The standard American diet (SAD) is often high in calories but lacking in essential nutrients.
  • Obesity and malnutrition often coexist in developed countries, particularly among poorer populations ("double burden").
  • Processed foods can be addictive, leading to overeating and long-term health issues due to sugar, preservatives, and low nutritional value.
  • Industrial agricultural practices have decreased the nutrient density of fruits, vegetables, and meat compared to past eras.
  • Focusing on a balanced diet, consuming whole, unprocessed foods, and prioritizing nutrient-dense meals promotes health and well-being.

Environmental Toxicants

  • Toxicants, such as heavy metals (e.g., lead, mercury), chemicals, and radioactive materials, are widespread environmentally, impacting human and environmental health.
  • Chronic low-level exposure can be more harmful than acute high-level exposure, particularly for developing brains.
  • Detecting effects of toxicants is challenging due to lack of unexposed groups, underestimation of human toxicity from animal studies, and complex interactions between various toxicants.
  • Environmental injustice contributes as communities of color and those with less economic means bear a disproportionate burden of toxic facilities and waste.
  • Laws regarding chemical safety in the U.S. are reactionary rather than preventive.
  • Various effects of toxicants: neurotoxins, mutagens, carcinogens, teratogens, endocrine disruptors, epigenetic impacts (alter gene expression).

Developmental Disabilities and Disorders

  • Toxicant exposures during prenatal and early childhood development can lead to various cognitive, attentional, emotional, and behavioral problems.
  • Mercury, pesticides, and endocrine disruptors have documented links to developmental issues including ADHD and autism spectrum disorders.
  • Lead exposure, as an example, causes substantial cognitive deficits and increases the risks of many behavioural differences and mental health problems.

Reproductive Abnormalities

  • Endocrine disruptors can interfere with hormone balance, affecting prenatal development of genitalia, secondary sex characteristics, sex drive, and fertility in both males and females.
  • Exposure to xenoestrogens may impact reproduction in both men and women in various ways.

Climate Change

  • Heat stress associated with climate change exacerbates various illnesses and diseases; it reduces access to nutritious food and clean water.
  • Climate change has serious health impacts on individuals, communities, and environments worldwide.
  • Climate change, linked to air pollution and other toxic exposures, leads to negative consequences on human health and global well-being.
  • Socially vulnerable groups disproportionately bear the burden of climate-related health problems.

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