Doing exercise makes you smarter. Finally!

From the New York Times, How Exercise Benefits the Brain:

"For some time, scientists have believed that BDNF helps explain why mental functioning appears to improve with exercise. However, they haven’t fully understood which parts of the brain are affected or how those effects influence thinking. The Irish study suggests that the increases in BDNF prompted by exercise may play a particular role in improving memory and recall." (from NYT)