And the nice thing is that we’re talking about modest exercise, not two hours in the gym every day.

That is remarkable. While it is intriguing, it is preliminary and we’ll look for other studies to confirm the finding. Then, we need basic science to figure out how it is helping.

Physical activity has been shown to be beneficial for health and aging in a number of areas. This emerging association between exercise and cognitive health is increasingly important to understand.

It’s not really definitive evidence. But on the other hand, what do we do while we wait for definitive evidence? We have lots of reasons to exercise, so perhaps this is another reason.