The Annals of Internal Medicine reported, functional aerobic age is probably lowered by the conditioning effect of repeated exercise. This simply means exercise makes you younger. Many studies have indicted that exercise prolongs life. Even engaging in light sports for two hours a week increases life expectancy. Older people can start an exercise program at any age and have short-term physiological benefits as well as a reduced incidence of chronic diseases.
Exercise can improve both cardiovascular fitness and strength.
Heath care experts suggest that you start slow and increase the length and intensity of your workouts gradually if you are starting an exercise program in mid-life. It is also a good idea to check with your doctor before significantly increasing your exercise program. Fitness professionals suggest running or walking as a way to delay or prevent osteoporosis, the bone loss that comes with aging. People who exercise almost always say it improves their sense of well-being. Thus it appears that the key to the fountain of youth is regular exercise.