Exercise is one of the healthiest activities for mind and body, and can help relieve stress, strengthen immune system function, and ward off major diseases such as cancer. From an aesthetic standpoint, exercise can help keep your skin looking youthful, tight, and smooth as a result of increased blood circulation. However, if you fail to take care of yourself properly given how often you exercise, you may be susceptible to developing dry skin, wrinkles, stretch marks, and an uneven silhouette, or figure.