SAD stands for Seasonal Affected Disorder, which is mainly attributed to the reduction in sunlight hours in winter and is your body’s reaction to the changes in season. With SAD you might feel sluggish or moody, have a loss of appetite, and even lose interest in activities you normally love. One way to combat these feelings and the wintertime blues is to get your body moving! Exercise, even light exercise, has been shown to improve mood and energy through increased blood flow and the release of certain endorphins, as well as improve sleep and alertness, and reduce anxiety and stress.