Different areas of research have found that depression in old age is related to a decrease in physical health. for example, one study found that depressed older people with high blood pressure are about times as likely to suffer a stroke as nondepressed older people with high blood pressure.

Different areas of research have found that depression in old age is related to a decrease in physical health. For example, one study found that depressed older people with high blood pressure are about three times as likely to suffer a stroke as non-depressed older people with high blood pressure.

Explanation:

Studies have shown that physical activity might cause depression to be reduced in old age patients. Patients who are old and depressed are more prone to diseases as compared to patients without depression. Studies have shown that old age patients with depression are more prone to cardiac illnesses and more deaths occur in such patients. There are three times more chances for an old age person with depression and high b.p to suffer a stroke.

answer; i believe the correct answer is ( proteins );

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.