Lifestyle and Health
Biology ⇒ Human Biology
Lifestyle and Health starts at 7 and continues till grade 12.
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See sample questions for grade 11
Describe how excessive screen time can impact physical health.
Describe the impact of chronic sleep deprivation on the endocrine system.
Describe the importance of hydration during physical activity.
Describe the relationship between physical activity and mental health.
Describe two negative health effects of excessive alcohol consumption.
Explain how peer pressure can influence lifestyle choices in adolescents.
Explain how regular exercise benefits the cardiovascular system.
Explain the role of antioxidants in the human diet.
Explain the term 'Body Mass Index (BMI)' and its significance in health assessment.
Explain why a balanced diet is important for teenagers.
List two ways in which regular physical activity can help prevent non-communicable diseases.
A 19-year-old university student has recently started experiencing frequent colds, slow wound healing, and increased fatigue. He reports a diet high in processed foods and low in fresh fruits and vegetables. Based on this scenario, explain the likely impact of his dietary choices on his immune system.
A 45-year-old individual has a family history of hypertension but maintains a healthy weight, exercises regularly, and follows a low-salt diet. Discuss how these lifestyle factors can influence the expression of genetic risk for hypertension.
Calculate the Body Mass Index (BMI) of an individual who weighs 80 kg and has a height of 1.75 m. Show your working.
Describe the mechanism by which trans fats increase the risk of coronary heart disease.
Explain how chronic sleep deprivation can affect the regulation of appetite and body weight at the hormonal level.
Explain the physiological effects of chronic excessive alcohol consumption on the liver.
A 35-year-old office worker has a sedentary job, consumes a diet high in processed foods, and reports frequent feelings of anxiety. Analyze how these lifestyle factors may interact to increase the risk of developing cardiovascular disease.
Calculate the daily energy expenditure of a 70 kg individual who has a basal metabolic rate (BMR) of 1600 kcal/day and engages in moderate physical activity that increases energy use by 50%. Show your working.
Describe the impact of shift work and irregular sleep patterns on the circadian rhythm and overall health.
