A group of older people who have exercised all of their lives, were compared to a group of similarly aged adults and younger adults who do not exercise regularly. The results showed that those who have exercised regularly have defied the aging process, having the immunity, muscle mass, and cholesterol levels of a young person.
The study showed that loss of muscle mass and strength did not occur in those who exercise regularly. The cyclists also did not increase their body fat or cholesterol levels with age and the men’s testosterone levels also remained high, suggesting that they may have avoided most of the male menopause.
More surprisingly, the study also revealed that the benefits of exercise extend beyond muscle as the cyclists also had an immune system that did not seem to have aged either. (more)