Answer:
by affecting their behaviour (such as attendance at a screening programme; the food they eat; whether they take prescribed medication), or more directly by affecting a physiological system (such as the immune or cardiovascular systems).
Keep portion sizes small
If the fast-food restaurant offers several sandwich sizes, pick the smallest. Bypass hamburgers with two or three beef patties, which can be close to 800 calories. Choose instead a regular- or children's-sized hamburger, which has about 250 calories. And skip the large serving of french fries and ask for a small serving instead. This switch alone can save 200 calories.
Choose healthier side dishes
Take advantage of the healthy side dishes offered at many fast-food restaurants. For example, instead of french fries choose a side salad with low-fat dressing or a baked potato. Or add a fruit bowl or a fruit and yogurt option to your meal.
Other healthy choices include apple or orange slices, corn on the cob, steamed rice, or baked potato chips.
Answer:
A) The discovery of HIV. They believe that the chimpanzee version of the immunodeficiency virus (called simian immunodeficiency virus, or SIV) most likely was transmitted to humans and mutated into HIV when humans hunted these chimpanzees for meat and came into contact with their infected blood.
Because whoever you hang with you become more like them
