As specified before in this blog, physical exercises not only help the muscles and circulatory system, but also the mind.
According to various recent studies, the brain produces a protein called BDNF when running is performed which allows the brain to develop new cells.
Aerobic exercises tend to increase verbal capacities, while weight training and aerobics increase both spatial and verbal faculties.
So even if you are only interested in developing mental power, physical exercise will help out a lot.
