Sports should seriously engage in my younger years. Sure, experts from the National Institute of health. They proved that in old age the feasibility of regular physical exercise is gradually decreasing.
The study involved volunteers of two age groups: 18 to 30 years and the elderly over 55 years. Subjects were asked to pass a 30 minute test on the bike. During the test the volunteers took blood tests to determine the various indicators.
It turned out that with age, antioxidant protection in the body decreases. So in my younger years playing sports benefit. Note that the activities in old age is also very useful, however, physical activity should not be too intense. So you can do more harm to the body than to preserve his youth.
Researchers recommend that seniors swimming and a sports walk. Suitable and simple walks in the fresh air. Even specialists recommend to keep the activity from youth to old age.