Biological Factors and Health

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Questions and Answers

Which of the following waist circumference measurements indicates a higher risk of potential health issues for men?

  • 88 cm
  • 92 cm
  • 102 cm (correct)
  • 98 cm

Which of the following is the correct relationship between systolic and diastolic blood pressure?

  • Systolic pressure occurs as the heart relaxes, while diastolic pressure occurs as the heart contracts.
  • Systolic pressure is the pressure on blood vessel walls as the heart relaxes, while diastolic pressure is the pressure as the heart contracts.
  • Systolic pressure is the pressure on blood vessel walls as the heart contracts, while diastolic pressure is the pressure as the heart relaxes. (correct)
  • Systolic and diastolic pressure both measure the pressure as the heart contracts.

Elevated levels of which type of cholesterol are associated with increased risk of cardiovascular diseases such as heart attack and stroke?

  • HDL (High Density Lipoprotein)
  • Triglycerides
  • VLDL (Very Low Density Lipoprotein)
  • LDL (Low Density Lipoprotein) (correct)

Which of the following is the primary function of hormones within the body?

<p>To regulate bodily functions through chemical signaling. (B)</p> Signup and view all the answers

Which hormone is directly involved in regulating mood and sleep patterns?

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

Which factor has the LEAST influence on hormone levels?

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

Which of the following is an example of a sex-specific health risk influenced by genetics?

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

How does genetic predisposition primarily affect an individual's health?

<p>It increases the risk of developing certain conditions. (B)</p> Signup and view all the answers

Which of the following is the best example of linking factors to health status?

<p>Maintaining a healthy body composition to reduce the risk of heart disease. (B)</p> Signup and view all the answers

Which of the following best describes the role of biological factors in influencing health indicators?

<p>They influence health indicators such as morbidity, mortality, and life expectancy. (D)</p> Signup and view all the answers

Flashcards

Body Composition

Physical measurements, like waist circumference, indicating potential health risks.

Blood Pressure

Pressure exerted by circulating blood on blood vessel walls.

Blood Cholesterol

Fat needed for body function; excess leads to health risks.

LDL (Low Density Lipoprotein)

Bad cholesterol, associated with plaque buildup in arteries.

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HDL (High Density Lipoprotein)

Good cholesterol, helps remove LDL.

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Hormones

Chemical messengers produced by glands to regulate body functions.

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Genetics

Inherited characteristics influencing health status.

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Genetic Predisposition

Increases risk of certain conditions (e.g., cancers, cardiovascular disease).

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Systolic

Pressure as heart contracts.

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Diastolic

Pressure as heart relaxes.

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Study Notes

  • Biological factors play a role in variations in health status

Biological Factors

  • Affect health and wellbeing, relating specifically to the body
  • Body composition, genetics, blood pressure, hormones, and blood cholesterol are all factors

Body Composition

  • Physical measurements (e.g., waist circumference) indicate potential health risks
  • A waist circumference over 88 cm in women or 102 cm in men is linked to health risks
  • Associated health risks include heart disease, stroke, hypertension, type 2 diabetes, mental health issues, and osteoarthritis

Blood Pressure

  • Pressure on blood vessel walls from circulating blood
  • Systolic pressure occurs as the heart contracts
  • Diastolic pressure occurs as the heart relaxes
  • High blood pressure (hypertension) damages blood vessels, increasing the risk of cardiovascular diseases
  • Risk factors include high body mass, inactivity, stress, smoking, and poor diet (excessive sodium)

Blood Cholesterol

  • Fat is needed for bodily function; excess levels cause health risks
  • LDL (low-density lipoprotein) is bad and associated with plaque in arteries
  • HDL (high-density lipoprotein) is good and helps remove LDL
  • High LDL is linked to cardiovascular diseases
  • Risk factors include alcohol, smoking, high-fat diet, lack of exercise, and genetic predisposition

Hormones

  • Chemical messengers produced by glands regulate body functions
  • Hormones like growth hormone, thyroid hormone, insulin, and cortisol affect growth and metabolism
  • Oestrogen, progesterone and testosterone affect reproduction
  • Serotonin, dopamine and oxytocin affect mental health
  • Imbalances can lead to diabetes, thyroid disorders, reproductive issues, and mood swings
  • Influences include diet, stress, age, and lifestyle

Genetics

  • Inherited characteristics influence health status (sex, body type, disease predisposition)
  • Sex-specific health risks include conditions like prostate, testicular, ovarian, and cervical cancer
  • Genetic predisposition increases the risk of certain conditions (e.g., cancers, cardiovascular disease, diabetes, hypertension, depression, obesity)

Linking Factors to Health Status

  • Each factor (body composition, genetics, blood pressure, hormones, blood cholesterol) is linked to variations in health status
  • Affect health indicators like morbidity, mortality, and life expectancy

Summary

  • Biological factors that impact health and wellbeing include body composition, blood cholesterol, genetics, blood pressure, and hormones
  • Influence health indicators (morbidity, mortality, life expectancy) and specific diseases (e.g., cardiovascular disease, type 2 diabetes)

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