BENEFITS OF WORKING OUT Why working out is important for our bodies Increases brain function and boosts mood Improves relaxation and sleep quality Improves bone density Increases energy levels Improves heart strength and reduces risk of major illnesses Aids weight loss and helps maintain healthy weight So why wait? Exercise offers benefits that can improve nearly every aspect of your health and daily life. You should aim for at least 150 minutes of physical activity in a week through a variety of activies.