Question
Which of the following statements regarding obesity is correct?
| A. |
It is more common in females in many populations
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| B. |
Its prevalence decreases with age up to 40 years
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| C. |
There is no genetic predisposition
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| D. |
Smoking is a risk factor for obesity
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Show Answer
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Correct Answer » A
Explanation
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A. More common in females – Correct
– Obesity is more prevalent in females in many populations, especially in developing countries.
– Influenced by hormonal, cultural & lifestyle factors.
Explanation of Other Options:
B. Prevalence decreases with age – Incorrect
– Obesity prevalence ↑ with age, especially until middle age.
C. No genetic predisposition – Incorrect
– Obesity has a strong genetic basis (e.g., leptin, MC4 receptor).
D. Smoking is a risk factor – Incorrect
– Smoking is linked to lower body weight, not obesity.
Obesity – Key Points:
– Multifactorial etiology:
• Genetic factors (leptin, MC4 receptor)
• Environmental factors (diet, inactivity)
– Epidemiology:
• More common in females (commonly tested)
• Increases with age
– Risk factors:
• High-calorie intake
• Sedentary lifestyle
• Socioeconomic factors
– Important clarification:
• Smoking is not a risk factor for obesity
