News for hackers. Stuff that matters.

A comment on Exercise 'keeps the mind sharp' in over-50s, study finds. Parent comment

Re:Exercise 'keeps the mind sharp' in over-50s, study finds by ekianjo on Tuesday April 25, 2017 @11:49AM (#14194603)
> Exercise Is Associated with Reduced Risk for Incident Dementia among Persons 65 Years of Age and Older

Correlation is not causation. How many times do we have to repeat that? It could be that folks who are more physically active tend to have healthier habits as well due to their personality/behavior.

Let me quote what the study you linked said:

> However, the existing evidence does not prove that regular exercise is associated with a lower dementia risk.

Even your links say so.

[ Parent | on HN ]
Re:Exercise 'keeps the mind sharp' in over-50s, study finds by soundwave106 on Wednesday April 26, 2017 @10:22AM (#14203172)
Agreed, but I don't think this changes the conclusion much. Sure, it is very possible that the observed decrease in dementia risk alluded to in these articles is more linked to healthier lifestyles and habits, and the proven benefits of exercise, than being a direct 1:1 link. This really doesn't diminish the importance of exercise and healthier habits, though.
[ Parent | on HN ]