Early and Emerging Adulthood Concepts
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Questions and Answers

Early adulthood is a time marked by unstable bodily systems, with many experiencing unsettling changes as they transition from adolescence.

False (B)

The brain reaches full maturity at age 16 for girls and 18 for boys.

False (B)

The concept of "emerging adulthood" was first proposed by Jeffrey Arnett.

True (A)

Which of these is NOT a characteristic of the "WEIRD" group, as described in the text?

<p>Rural (E)</p> Signup and view all the answers

Emerging adulthood is essentially a universal stage, shared equally across all cultures.

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

What is the main difference between "homeostasis" and "allostasis"?

<p>Homeostasis refers to immediate physical adjustments in response to changes, while allostasis describes long-term adaptations of body systems that occur over time.</p> Signup and view all the answers

The health of a young adult can be significantly affected by their cumulative habits from earlier stages of life, such as sleep patterns, diet, and physical activity.

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

Physical activity has minimal impact on mental health, primarily benefiting cardiovascular health.

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

What is the primary focus of the CARDIA study?

<p>The CARDIA study examines the long-term effects of lifestyle choices, particularly exercise habits, on cardiovascular health among young adults.</p> Signup and view all the answers

Flashcards

Emerging Adulthood

A developmental stage from the late teens to mid-twenties (roughly 18-25), characterized by exploration, identity formation, and postponement of traditional adult roles.

Prefrontal Cortex

The front part of the brain that controls planning, decision-making, and impulse control.

Organ Reserve

The extra capacity of organs to handle stress and cope with demands.

Homeostasis

The body's ability to maintain a stable internal environment (like temperature, blood sugar) despite external changes.

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Allostasis

The body's long-term adaptation to stress, which may deplete organ reserve over time.

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Allostatic Load

The cumulative wear and tear on the body due to chronic stress.

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How does a night of bad sleep impact the body?

A night of bad sleep causes temporary tiredness, which is a homeostatic response. However, chronic sleep problems increase allostatic load and decrease organ reserve over time.

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How does exercise impact the body?

Exercise strengthens the heart and lungs, improves blood pressure, reduces depression, and protects against chronic diseases. It decreases allostatic load by increasing organ reserve.

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What is CARDIA?

A long-term study that tracks the health of thousands of young adults, focusing on how lifestyle choices impact health and disease risk.

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What is the WEIRD population?

Western, Educated, Industrialized, Rich, Democratic - a demographic group often overrepresented in research, which may not be representative of the global population.

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Why is emerging adulthood considered a global trend?

Despite its origin in WEIRD societies, emerging adulthood is now seen in many cultures as young people postpone full adulthood and prioritize education and career before settling down.

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How has childbearing changed globally during emerging adulthood?

Young women are having fewer children globally, due to increased education and career pursuits, compared to previous generations.

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What is the relationship between age and death rate from heart disease and cancer?

Death rates from heart disease and cancer increase significantly with age, reflecting the decline of organ reserve and increasing allostatic load.

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How does COVID-19 impact different age groups differently?

Older adults have a higher risk of dying from COVID-19 because their organ reserve is lower, and homeostasis takes longer to restore balance during illness.

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How does the body respond to sleep deprivation in the short term, and long term?

Short-term sleep deprivation leads to temporary tiredness (homeostasis). Chronic sleep deprivation increases allostatic load and decreases organ reserve over time.

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How does the body adapt to exercise?

Regular exercise causes the body to adapt (homeostasis) to handle more strenuous activities, which decreases allostatic load and strengthens the heart and lungs.

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What does 'healthy' mean in the context of emerging adulthood?

Emerging adulthood is a time of peak physical potential, but chronic health issues can start to develop if lifestyle choices are not healthy, contributing to the cumulative allostatic load.

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What is the main difference between homeostasis and allostasis?

Homeostasis is the body's immediate response to keep things stable. Allostasis involves long-term adjustments to stress, which may deplete organ reserve over time.

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How does the body's response to heat change with age?

Young adults have a quicker and more efficient homeostatic response to heat than older adults, making them less susceptible to heat-wave deaths.

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How does sleep disrupt the balance of the body?

Poor sleep affects various body functions like mood, appetite and activity, disrupting homeostasis and increasing allostatic load.

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Why is the age range of 'emerging adulthood' not fixed?

The precise age range for emerging adulthood can vary across cultures and societies, but it's generally understood as the period after adolescence and before full adulthood.

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Why do experts debate over the label 'emerging adulthood'?

Some scholars believe 'emerging adulthood' is a modern phenomenon, while others prefer terms like 'late adolescence' or 'early adulthood,' highlighting the ongoing debate surrounding this stage.

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Why is the experience of emerging adulthood different in Western vs. non-Western societies?

Emerging adulthood, characterized by exploration and delaying responsibilities, may be more prevalent in Western societies with greater opportunities for education and self-discovery.

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How do lifestyle choices like diet and exercise link to aging and health?

Lifestyle choices impact the body's ability to withstand stress, affecting organ reserve, homeostasis, and allostatic load, ultimately impacting lifespan and health.

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Why is organ reserve essential to understanding health and disease?

Organ reserve is the extra capacity of organs to handle stress, which is crucial for coping with illness and injury, particularly as we age.

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How can we protect ourselves from the negative effects of allostatic load?

Adopting healthy lifestyle habits - sleep, physical activity, balanced diet, and managing stress - helps mitigate allostatic load and preserve organ reserve.

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Study Notes

Early Adulthood

  • Prime time for high energy, physical labor, and reproduction.
  • Body systems function optimally.
  • Maximum height usually reached by ages 16 (girls) and 18 (boys).
  • Brain development complete by mid-20s.
  • Prefrontal cortex fully developed.

Emerging Adulthood

  • Period from late teens to 20s (ages 18-25).
  • Characterized by postponing adult responsibilities.
  • Focused on education, jobs, and relationships.
  • Emerging adulthood concept, proposed by Jeffrey Arnett.

Biological Aspects

  • Organ reserve allows for exertion.
  • Homeostasis maintains body balance.
  • Allostasis adjusts body systems over time.
  • Allostatic load accumulates from poor habits.

Health Factors

  • Emerging adults generally rate their health favorably.
  • Increased organ reserve contributes to resilience.
  • Some experience accelerated aging (biological).
  • Accumulated stressors lead to allostatic load and poor health outcomes (especially from sleep deprivation).
  • Emerging adulthood is not universal; it's primarily seen in Western, Educated, Industrialized, Rich, and Democratic (WEIRD) nations.
  • Young women in many less affluent nations have fewer children than in the past.
  • Increased education and career opportunities may contribute to the decision to delay having children.

Cultural Variations

  • Definitions and duration may vary across cultures.
  • Some cultures may define the stage's end at age 21 or 30.

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Related Documents

Development of the Body PDF

Description

Explore the stages of early and emerging adulthood, focusing on the physical, biological, and health aspects of this pivotal life stage. Understand the effects of lifestyle choices and stress on health outcomes and learn about brain development and organ reserve during these developmental periods.

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