That doesn't explain why fish have a three minute memory! The brain can't be expected to do its job if the body isn't receiving the sufficient amount of vitamins and minerals. We are bound to be sluggish if we constantly fill ourselves with Brain Peak fast food. Exercise is important too if you want to increase brain power. Mind and body working together is the best way to keep the brain tickingYour brain is the most important part of your body, but is often not treated with the respect it deserves. It is vital for anything you do, from body function, to how you think about things related to work and home life.