Exercise is the phyaical exertion of the body-making the body do a physical activity which results in a level of physical fitness and mental health.There are three broad types of exercise: 1.Light exercise: - for example, going for a walk.2.Moderate exercise: -makes the individual slightly out of breath.Examples, include walking briskly, cycling moderately, or walking up a hill.3.Vigorous exercise: -pushes the body much nearer to it’s limit.This could include running, cycling fast, and heavy weight training.Benefits of exercise: 1.Exeecise increases energy levels.Exercise increases both the strength and efficiency of your cardiovascular system to get the oxygen and nutrients to your muscles.2.Exercise improves muscle strength and keeps muscles strong and joints, tendons and ligament flexible allowing you move more easily and avoid injury.3.Exercise can help you to maintain a healthy weight .The more you exercise the more calories you burn, in addition the more muscle you develop.4.Exercise improves brain function.Exercise increases blood flow and oxygen levels in the brain.It also helps in production of new cells in the brain .5.Exercise is good for your heart.It reduces blood pressure so it lowers the stress on your heart.6.Regular exercise lowers your risk of developing type 2 diabetes.