There are aspects of winter that can be rather predictable – cold weather, ice and snow, and for some people, depression. Seasonal Affective Disorder or SAD is a seasonal depression that occurs at the same time each year. It usually starts in the fall and ends in the spring or early summer. Individuals with SAD typically report symptoms of fatigue, lack of concentration, sleep more, increased appetite and withdraw from activities. Another symptom can be a craving for starch or sweet foods.