The amount of blood in a human body varies, depending on factors such as age, sex, overall health and even where a person lives. For example, men tend to have more blood than women of comparable size and weight.
Be as Active as Possible. Regular physical activity and exercise are important to the physical and mental health of almost everyone, including older adults.Staying physically active and exercising regularly can produce long-term health benefits and even improve health for some older people who already have diseases and disabilities.tudies have shown that exercise provides many health benefits and that older adults can gain a lot by staying physically active. Even moderate exercise and physical activity can improve the health of people who are frail or who have diseases that accompany aging.
Fewer than half (43 percent) of adults say they exercise to manage stress and 39 percent say they have skipped exercise or physical activity in the past month when they were feeling stressed. Sixty-two percent of adults who say they exercise or walk to help manage stress say the technique is very or extremely effective. Forty-three percent of adults who report exercising specifically to help manage stress say they skipped exercise or physical activity in the past month when they were stressed. Half of adults (50 percent) say that being physically active or fit is extremely or very important to them, yet only 27 percent report doing an excellent or very good job of achieving this.