A study of over 1400 women over a 44-year follow up looked at the effect of midlife cardiovascular fitness and the risk of subsequent dementia.
Hörder and colleagues found that a high-fitness level, determined by a maximal ergometer cycling test, delayed age at dementia by 9.5 years, and time to dementia onset by 5 years, when compared with a medium fitness level.
It looks like research is starting to support exercise as a reliable strategy to prevent dementia.
1. Hörder H, Johansson L, Guo X, et al. Midlife cardiovascular fitness and dementia: A 44-year longitudinal population study in women. Neurology. 2018;90:e1298-e1305.