Drinking water has been proven to provide a mental boost! According to an article by Live Science, "In the study, participants who drank about three cups of water (24 ounces, or 775 milliliters) before taking a battery of cognitive tests performed better on a test that measured reaction times compared with those who did not drink water." So put down that soda and drink some water for a change. It makes you feel good, healthier, and smarter!