If you think exercising is important for your body, then consider exercise for your face, too. Your face has muscles, and toned muscles will always look better than weak, flabby muscles. Unlike skeletal muscles, such as those in your biceps and hamstrings, muscles in the face are often directly attached to the skin that covers them. When these muscles lose tone and elasticity, gravity begins to pull the skin over them down, resulting in the dreaded skin sagging.