According to some recent research:
People who stayed physically active into old age tended to have larger brains than those who did not exercise in the study, published today in the journal Neurology.
The brain typically shrinks in late adulthood, and this shrinkage is believed to play a role in age-related memory decline.
The new research is the latest to suggest that exercise is good for the brain as well as the body.
So go take that walk, pump that iron, play that tennis!
Your brain will be happy [and larger.]