The human brain is a multifaceted organization of cells and around fifty million neurons that work with utmost complexity in order to keep you going healthy and strong. It is believed to be five times bigger than an average brain of a mammal with the same body size.
In human beings, the frontal lobes and the forebrain are especially expanded since these parts are the ones responsible for self-control, planning and reasoning. Thus, in order for you to have a stronger and healthier body, try to better you brain. Healthier mind means healthier body.