In the first article, Neurotopia discusses a new paper that documents how exercise helps the brain recover from brain cancer.
But exercise is not just for stress relief. There are several studies out there which imply that exercise can make you THINK better, too. And this paper goes one step further, and implicates exercise in helping young animals recover from brain cancer.
The second article is discussed by Dr. Shock, and it describes the benefits of walking regularly for elderly women who are either overweight or moderately depressed.
Exercise isn't just for athletes.