The human brain, which weighs only three-pounds, is on duty round the clock whether we're awake or asleep, conscious or unconscious. Electrical and chemical messages fly around it constantly. It regulates all the other organs in our body and makes possible every action that we perform.
Fortunately, there are steps that we can take to make and keep our brain fit. In fact, as science writer Guy P. Harrison points out in his new book entitled Think, they are the same steps that benefit our overall health. (1) According to Harrison, here is what we should do for our brain: