Alzheimer’s Disease is the most common cause of dementia among older people—with no available cure. But a promising study published recently in the Annals of Internal Medicine reports that physically fit adults in their 40’s and 50’s are nearly 40% less likely to develop dementia or Alzheimer’s by the time they were 65 compared with people who were not as fit.
The participants were patients at the Cooper Clinic in Dallas. Researchers tested over 20,000 adults with a baseline treadmill fitness test and compared the fitness results with Medicare records for 10 years starting in 1999, to find out whether or not the participants developed dementia as they aged. The patients with the highest fitness scores in midlife were 40% less likely to have developed dementia.