All diseases are affected by stress, and it is a proven fact. This concept is one of the primary triggers for both physical and mental health conditions. A large number of people are victims of depression due to nothing but the rising levels of their daily life stress. Whether you are dealing with stress from school, work, or something else, exercising can significantly lower stress levels. Working up a sweat will help you get your mind off of other problems, like stuff going on with your family or friends.