Exercise provides many health benefits such as reducing stress, improving heart health, and boosting mood and energy levels. However, exercise also carries some risks if overdone or done improperly, such as risk of injury from strains or sprains, especially for those with preexisting medical conditions or without proper training and equipment. In general, most adults should aim for at least 150 minutes of moderate exercise or 75 minutes of vigorous exercise per week to gain benefits while minimizing risks.