New studies continue to show that exercise is good for your brain. From the NYT:
Until about 20 years ago, most scientists believed that the brain’s structure was fixed by adulthood, that you couldn’t create new brain cells, alter the shape of those that existed or in any other way change your mind physically after adolescence.
But in the years since, neurological studies have established that the brain retains plasticity, or the capacity to be reshaped, throughout our lifetimes. Exercise appears to be particularly adept at remodeling the brain, studies showed.
Looking for a quick way to exercise? Another study likes this seven minute workout. All you need is a floor, a wall, a chair, and some gravity.