Exercise may be the best option to counter the physical effects of aging. In this study, investigators assessed both female and male cyclists, aged 55 to 79, and found that compared with non- exercisers, the cyclists did not exhibit age-related muscle mass or strength loss, they did not experience age-related increases in body fat or cholesterol levels, and their immune system was as robust as that of a younger person. Researcher Dr. Janet Lord writes, “Our research means we now have strong evidence that encouraging people to commit to regular exercise throughout their lives is a viable solution to the problem that we are living longer but not healthier.” Aging Cell, March 2018