It stimulates the cells and circulates the blood and oxyegen in the body. It also makes the body produce endorphins which make you feel full of energy. Depression can cause us to feel sluggish and tired. Exercising doesn't have to be strenuous either. Dancing, raking leaves, and swimming or playing tennis are all great forms of exercise and stress relief.
Exercise also promotes sound sleep.
As we said before, stress can sap energy, making us feel sluggish. So, by decreasing stress, we can inadvertantly increase our energy level. When we are happy and not depressed, we feel better mentally and physically. All of these have been found to have a relaxing effect. Conversely, hard rock, loud, harsh music can overstimulate and actually cause tension.