Biology ยท Science General
Health and Nutrition
2,275 Questions
Health and nutrition questions explore the benefits of physical activity, chronic disease prevention, and dietary choices. This topic bridges human biology with everyday wellness, appearing in general science papers. Practice these questions to master concepts related to healthy lifestyles and aging.
Physical activity benefitsChronic disease preventionWorkplace wellness programsHealthy aging strategiesNutritional supplement benefits
Health and Nutrition Questions
B
Correct answer
Explanation
Weight gain depends on total calorie intake versus expenditure, not the timing of meals. Your body processes calories the same way regardless of when you eat. However, late-night eating may lead to weight gain if it causes you to exceed daily calorie needs or make poorer food choices.
B
Correct answer
Explanation
The statement is false. Strength training is beneficial at any starting weight. Building muscle helps boost metabolism, increase fat burning, and preserves lean muscle mass during weight loss. Waiting to start strength training delays these important benefits.
B
Correct answer
Explanation
The statement is false. Muscle and fat are completely different types of tissue with different cellular structures. When you stop exercising, muscle tissue may atrophy (shrink) and fat cells may expand if you consume excess calories, but muscle never literally transforms into fat.
A
Correct answer
Explanation
Weight gain and obesity are complex conditions influenced by multiple factors including genetics, diet quality, physical activity levels, hormonal imbalances, medications, stress, sleep patterns, and environmental factors. Rarely is there a single cause.
A
Correct answer
Explanation
Moderately vigorous exercise increases metabolic rate, builds muscle tissue (which burns more calories at rest), and improves insulin sensitivity. These physiological changes are often essential for sustainable weight management when combined with dietary changes.
A
Correct answer
Explanation
Food intolerances (such as to gluten, dairy, or specific compounds) can cause inflammation, water retention, and metabolic disruptions that lead to weight gain. Most people never undergo elimination diets or medical testing to identify these hidden sensitivities.
B
Correct answer
Explanation
The statement claims adding carrots would be unlikely to produce weight loss, which is marked false. Carrots are low-calorie, high-fiber foods that can create satiety and potentially reduce overall calorie intake when substituted for higher-calorie foods. Therefore, they could contribute to weight loss.
B
Correct answer
Explanation
Negative emotions like repulsion toward your body can actually hinder weight loss efforts by increasing stress and emotional eating patterns. Self-acceptance combined with healthy habits is more effective than self-criticism or disgust-based motivation.
A
Correct answer
Explanation
Mindful eating focuses on being fully present during meals - noticing textures, flavors, smells, and the eating experience. This practice helps people recognize satiety cues earlier, reduce overeating, and develop healthier relationships with food, supporting weight loss efforts.
A
Correct answer
Explanation
Childhood weight patterns often establish psychological and behavioral patterns around food that persist into adulthood. Early associations between food, comfort, coping, or family dynamics continue influencing eating habits and weight regulation even if the original psychological drivers are unconscious.
A
Correct answer
Explanation
Studies have shown that owning a cat can indeed lower blood pressure and reduce stress levels. The act of petting a cat releases oxytocin and reduces cortisol, helping people feel calmer and more relaxed.
B
Correct answer
Explanation
Exercise is beneficial for people with asthma when properly managed. Many athletes have asthma and control it with pre-exercise medication. Regular exercise improves overall health and lung function, though asthma triggers should be discussed with a doctor.
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Nearly 50% of all US adults are overweight or obese.
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Nearly 60% of all US adults are overweight or obese.
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Nearly 70% of all US adults are overweight or obese.
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Nearly 80% of all US adults are overweight or obese.
C
Correct answer
Explanation
CDC and NIH data consistently show that approximately 70% of American adults are overweight or obese, with about 40% falling into the obese category alone. This statistic has remained relatively stable since the early 2000s, making option C the correct answer.
A
Correct answer
Explanation
Nicotine in cigarette smoke acts as a stimulant that causes immediate cardiovascular effects. Within seconds of inhalation, nicotine triggers the release of adrenaline and other hormones that cause blood vessels to constrict and the heart to beat faster, resulting in a rapid increase in blood pressure. An increase of 10-20 points (mmHg) is a well-documented acute effect of smoking. Therefore, True is correct.
B
Correct answer
Explanation
The statement claims smoking raises HDL (good cholesterol) levels. In reality, smoking has the opposite effect - it LOWERS HDL cholesterol levels. HDL is considered good because it helps remove cholesterol from arteries. Smoking reduces HDL levels while increasing LDL (bad cholesterol) and triglycerides, contributing to cardiovascular disease risk. Therefore, False is the correct answer.