Biology ยท Science General

Health and Nutrition

1,950 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

Multiple choice general knowledge science & technology

Brushing your teeth regularly has been shown to increase heart disease

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Regular tooth brushing actually REDUCES heart disease risk rather than increasing it. Extensive research has established a strong link between gum disease (periodontitis) and cardiovascular disease. Poor oral hygiene allows bacteria to accumulate in the mouth, enter the bloodstream through gums, and contribute to inflammation and arterial plaque formation. Regular brushing and flossing remove plaque bacteria, reducing gum inflammation and systemic bacterial load. Studies consistently show that people with good oral hygiene habits have lower rates of heart attacks, strokes, and other cardiovascular problems.

Multiple choice general knowledge

Which of these would NOT be helpful to get fit?

  1. Yoga

  2. Drinking alcohol

  3. Running

  4. Swimming
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Alcohol consumption dehydrates the body, provides empty calories, impairs muscle recovery and protein synthesis, and is counterproductive to fitness goals. Yoga, running, and swimming all contribute to improved physical fitness when done regularly.

Multiple choice general knowledge

Having a strong core can help prevent?

  1. Injuries

  2. Weight gain

  3. Weight loss

  4. Illness
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A strong core stabilizes the spine and improves overall body mechanics, significantly reducing the risk of injuries during both daily activities and athletic performance. Core strength is foundational for safe movement.

Multiple choice general knowledge

To lose fat from specific areas of the body, you must:

  1. Do exercises that target that area of the body

  2. Do an hour of cardio exercise every day

  3. Lose overall body fat and hope your genes cooperate

  4. Eat less calories
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Spot reduction is a myth - you cannot selectively lose fat from specific areas. Overall body fat loss through diet and exercise is the only way, but genetics determine where fat is lost first and last from your body.

Multiple choice general knowledge

When doing cardio exercise, the best way to burn more calories is to

  1. Stay in your fat burning zone with low intensity exercise

  2. Use hand or ankle weights to add intensity

  3. Exercise at a higher intensity

  4. Exercise on an empty stomach
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Higher intensity cardio burns more calories per minute and has greater post-exercise oxygen consumption (EPOC), leading to more total calorie burn. The 'fat burning zone' maximizes fat percentage but not total calories, and weights/empty stomach don't significantly increase burn.

Multiple choice general knowledge

To lose weight and change the shape of your body, you should

  1. Walk for 15 minutes a day

  2. Go on a diet

  3. Do regular cardio and strength training and monitor your calories

  4. Take weight loss supplements
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sustainable body transformation requires combining cardio for calorie burn, strength training to preserve muscle and boost metabolism, and caloric monitoring to ensure appropriate intake. Short-term fixes or minimal effort won't produce lasting results.

Multiple choice general knowledge

If you exercise consistently, you can

  1. Get exactly the body you want

  2. Look like a model or a movie star

  3. Can improve your strength, endurance and overall health

  4. Eat anything you want
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Consistent exercise improves measurable fitness markers like strength, cardiovascular endurance, and overall health indicators, but cannot guarantee specific aesthetic outcomes which are heavily influenced by genetics, lifestyle factors, and individual variations.

Multiple choice general knowledge

Exposure to sunlight helps a person improve his health because

  1. the infrared light kills bacteria in the body

  2. resistance power increases

  3. the pigment cells in the skin get stimulated and produce a healthy tan

  4. the ultraviolet rays convert skin oil into Vitamin D
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ultraviolet rays from sunlight convert a compound in skin oil (7-dehydrocholesterol) into Vitamin D, which is essential for bone health and immune function. This is a well-documented physiological benefit of moderate sunlight exposure.

Multiple choice general knowledge

To burn the fat & get in shape

  1. Use public transport

  2. Pool a car

  3. Bicycling for 30 minutes

  4. Brisk walking for 1 hour
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Among the options, bicycling for 30 minutes is the most effective calorie-burning activity. Public transport and car pooling don't involve physical activity. While brisk walking for 1 hour burns calories, 30 minutes of cycling typically burns more calories in less time (approximately 200-300 calories vs 150-200 for walking).

Multiple choice general knowledge

Exposure to sunlight helps a person improve his health because

  1. the infrared light kills bacteria in the body

  2. resistance power increases

  3. the pigment cells in the skin get stimulated and produce a healthy tan

  4. the ultraviolet rays convert skin oil into Vitamin D
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sunlight exposure triggers vitamin D synthesis in skin cells - ultraviolet B rays convert 7-dehydrocholesterol (a skin oil compound) into previtamin D3, which becomes vitamin D3. This is essential for calcium absorption, bone health, and immune function. Infrared rays don't kill bacteria internally, and tanning is a side effect, not the health benefit.

Multiple choice general knowledge

Lycopene, glutathione, and glutamine are powerful antioxidants that neutralize the free radicals that are produced in the body as a result of routine bodily processes. An excess of these free radicals in your system causes rapid aging because they accelerate the rate of cellular damage. Aging is simply the result of this damage. Thus, to slow down aging it is necessary to supplement your diet with these antioxidants on a daily basis. Which of the following, if true, most seriously undermines the author's contention?

  1. Most persons aren't concerned with the effects of aging ...........until it is too late to do anything.

  2. Exercise associated with normal daily activities effectively ...........neutralizes and dissipates the free radicals that are ...........produced as a result of routine bodily processes.

  3. The cost of antioxidants is exorbitantly high and well ...........beyond the budget of most consumers.

  4. Only overweight people who do not exercise on a daily ...........basis are likely to have an excess of free radicals in their ...........systems.

  5. Smoking cigarettes is one of the main causes of cellular ...........damage in humans.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The author claims daily antioxidant supplementation is necessary to slow aging, but Option B shows that normal daily exercise already neutralizes free radicals. If exercise addresses the problem, supplementation isn't necessary, directly undermining the author's conclusion.

Multiple choice

The maintenance of steady states of temperature and blood pressure are examples of

  1. thermo stasis

  2. homeostasis

  3. intrinsic motivation

  4. biological rhythm
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Homeostasis is the physiological process of maintaining stable internal conditions (like temperature, blood pressure, blood glucose) despite external changes. 'Thermo stasis' is not a standard term. Intrinsic motivation refers to internal drive for tasks. Biological rhythms are cyclical patterns (sleep-wake cycles), not steady-state maintenance.

Multiple choice

Which of the following characteristics of a chronic disease is not correct?

  1. It results in loss of weight.

  2. It makes the person feel tired.

  3. It makes the person feel restless.

  4. It lasts for short duration.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Transmission of disease means transfer of disease causing agents from diseased/infected person to the healthy one. AIDS is transmitted by sexual contact. Cholera and typhoid are transmitted by infected food and water while malaria is transmitted by the vector; female anopheles mosquitoes.

Multiple choice

In which of the followng conditions is bed rest not recommended?

  1. When a person fractures his/her leg.

  2. When a person is weak enough to walk.

  3. When a person has a spine problem.

  4. When a person is suffering from skin disease.

  5. When a person is suffering from very high blood pressure.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

No, the patient does not need to be treated in this way.