On: How exercise could lead to a better brain

[GigabyteCoin]

Or is it that people with a better brain like to exercise?

[wanderingstan → GigabyteCoin]

The article specifically eliminates this possibility. The mice in the study had no choice as to what group they would be in, so there was no self-selection effect.

[seanpreston → GigabyteCoin]

It's probably self-reinforcing. The more you exercise the better your brain gets. The better your brain gets the more you exercise.