We all know we should be exercising…right? We know it can help us stay at a healthy weight. We know it can make us stronger. But what about our brains? Can exercise actually make us smarter? According to Harvard University and the University of British Columbia…YES! Exercise, especially the kind that raises your heart rate and makes you sweat, increases the production of growth hormones that help new blood vessels in the brain grow and keep the cells in the brain healthy