It is a common knowledge that exercise is good for us. It helps us burn calories, build muscles and regulate our weight. It lowers our risk of having a heart disease and other chronic diseases. But not many of us aware of the enormous effect exercise has on our brain. It increases our energy levels, enhances our memory and improves our mood. If you feel good after exercise, that is not a surprise. Exercise has been scientifically proven to make us happier. The following infographic describes the why and how exercise affects our mood.