Both the brain and the human will need exersize just like your muscles need to exersize. All will atrophy without stimulous and challenge. Set hard challenges that require self-discipline to accomplish them. Each challenge met and overcome strengthens your ability to meet the next challenge.

Winston Churchill once addressed a commencement class with a short speech describing how to accomplish great things: "Never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, never, give up."