Risk factors for early-onset dementia

17 Mar

A paper “Cardiovascular and cognitive fitness at age 18 and risk of early-onset dementia” in the journal Brain, reports:

 “lower cardiovascular fitness and cognitive performance in early adulthood were associated with an increased risk of early-onset dementia and mild cognitive impairment later in life, and the greatest risks were observed for individuals with a combination of low cardiovascular fitness and low cognitive performance.”

Here is a good summary in Science Daily.

As always, we must remember that correlation is not causation and we cannot directly infer from this study that exercise and better diet will prevent early-onset dementia. One website reported the study this way: “Physical Fitness During Teens Prevents Early Onset of Dementia: Study,” a claim that, while plausible, goes beyond the evidence actually reported in the study.


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