Being more muscly not only makes you look good, it improves your posture and reduces the risk of developing back pain. Muscles burn calories, even when you are asleep, and they are also essential for keeping you active. 

One of the best ways to build up your muscles is to do resistance training. Body-weight exercises, such as squats and press ups, are some of the best for your heart and brain.

Research says that squats can have a more powerful brain-boosting affect than walking or jogging. So try even just a couple of minutes a day to feel the benefits!