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
A
Correct answer
Explanation
There is no scientific evidence supporting the claim that smelling bananas or green apples helps with weight loss. This appears to be a pseudoscientific myth or aromatherapy claim without empirical validation. Weight loss fundamentally depends on caloric balance (calories consumed vs. calories burned), not olfactory stimulation. The correct answer is therefore False.
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Cancer
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Cardiovascular disease
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Stroke
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All of the above
D
Correct answer
Explanation
Epidemiological studies consistently show that regular fruit consumption reduces risk factors and incidence of all three conditions. The fiber, antioxidants, and phytochemicals in fruits protect against cancer, cardiovascular disease, and stroke.
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plasma
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heart rate
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strength
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lung power
D
Correct answer
Explanation
Smoking directly damages lung function by destroying alveoli and reducing lung capacity, which decreases physical stamina and increases shortness of breath during physical activity. This reduced aerobic capacity makes smokers less physically active overall compared to nonsmokers.
B
Correct answer
Explanation
Weight gain increases cardiovascular risk factors like hypertension, diabetes, and atherosclerosis regardless of the cause. Alcohol-related weight gain specifically compounds alcohol's direct negative effects on the cardiovascular system, creating a synergistic health burden rather than any protective effect.
B
Correct answer
Explanation
While individual foods aren't solely responsible for fat distribution patterns, beer contributes substantially to calorie intake and abdominal fat accumulation. The statement contains contradictory nutritional claims and misleading assertions about beer not causing beer bellies despite its calorie content contributing to weight gain.
A
Correct answer
Explanation
Olive oil contains monounsaturated fats and antioxidants that can help reduce LDL (bad) cholesterol levels while maintaining HDL (good) cholesterol. Regular consumption has been linked to improved cardiovascular health and reduced risk of heart disease.
B
Correct answer
Explanation
This is a popular myth, but a kiss typically burns only about 2-6 calories per minute, nowhere near 100 calories. To burn 100 calories, you would need much more vigorous physical activity for a sustained period. This statement is exaggerated and not supported by scientific research.
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An elevated level of low density lipoprotein (LDL) and a decreased level of high density lipoprotein (HDL) are associated with a reduced risk of coronary artery disease.
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A decreased level of LDL and an elevated level of HDL are associated with a reduced risk of coronary artery disease.
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Levels of LDL and HDL should be about the same to reduce the risk of coronary artery disease.
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dummy
B
Correct answer
Explanation
LDL (low-density lipoprotein) is considered 'bad' cholesterol because it contributes to plaque buildup in arteries, while HDL (high-density lipoprotein) is 'good' cholesterol that helps remove cholesterol from arteries. Therefore, lower LDL levels and higher HDL levels are associated with reduced cardiovascular risk. Option A incorrectly states the opposite relationship, and option C incorrectly suggests equal levels are optimal.
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Spiders in their sleep
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Cockroaches in their sleep
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Ants in their sleep
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Mosquitoes in their sleep
A
Correct answer
Explanation
This is a widely circulated urban legend with no scientific basis. There is no evidence that people regularly eat spiders in their sleep. The myth likely originated from exaggeration and has been repeatedly debunked by arachnologists.
D
Correct answer
Explanation
Type 2 wild poliovirus (P2) was declared eradicated in 1999, making it the first of the three wild polio strains to be eliminated globally. The last naturally occurring case of P2 was detected in 1999 in India. Type 1 and Type 3 wild polioviruses continued to circulate after this date.
B
Correct answer
Explanation
There is no scientific evidence that smelling foods like green apples or bananas contributes to weight loss. While some studies have explored aromatherapy's effects on appetite, simply smelling these specific foods does not directly cause weight reduction. Sustainable weight loss requires a caloric deficit through diet and exercise, not food aromas.
B
Correct answer
Explanation
There is no scientific evidence that smelling these foods causes weight loss. This claim originated from a misinterpreted small study about scent reducing appetite, but the effect was minimal and short-lived. Weight loss requires caloric deficit.
A
Correct answer
Explanation
This claim lacks scientific evidence and appears to be a myth. While certain scents may affect appetite, there is no peer-reviewed research demonstrating that smelling bananas or green apples directly causes weight loss. Weight management requires caloric deficit through diet and exercise, not passive sensory exposure. This is not a scientifically supported weight loss method.
B
Correct answer
Explanation
This is a dangerous myth and could cause serious harm. Dog feces can contain harmful bacteria, parasites, and viruses that could lead to severe infections when applied to broken skin or insect bites. Proper treatment involves cleaning with soap and water, using antiseptics, and seeking medical attention if needed.