Exercise also grows neurons, according to many recent studies (so the effect is more than just short-term). See e.g. http://well.blogs.nytimes.com/2009/09/16/wh

Exercise also grows neurons, according to many recent studies (so the effect is more than just short-term). See e.g. http://well.blogs.nytimes.com/2009/09/16/what-sort-of-exercise-can-make-you-smarter/ http://well.blogs.nytimes.com/2009/09/16/what-sort-of-exerci...