"Variety in activities, not exercise intensity, reduces the risks of dementia and Alzheimer's disease, says a Johns Hopkins study."
"Volunteers were asked about the duration and frequency of 15 common physical activities in older adults, and researchers found that those doing the widest variety -- including such sedentary activities as playing cards -- were less likely to develop dementia. "It's not necessarily the energy you spend," said Johns Hopkins University epidemiologist and lead author of the study, Dr. Constantine Lyketsos. "It's the variety that matters.""
""We don't yet know why this association exists or what causes it. It could well be that maintaining a variety of activities keeps more parts of the brain active, or that this variety reflects better engagement in both physical and social activities. Confirmation of this association in future studies may provide an additional impetus for people to remain or become engaged in several physical and other leisure activities later in life," says Constantine G. Lyketsos, M.D., professor of psychiatry and behavioral sciences at Johns Hopkins and senior author on the report."
So ... besides cycling ... what else do you do?