Nearly 15% of Canadians experience the “winter blues,” and between 2% to 6% of Canadians suffer from seasonal affective disorder (Melrose, 2015). Seasonal affective disorder is a serious, repeating form of depression that typically starts in the fall/winter and ends in the spring. Dr. Simon Sherry discusses seasonal affective disorder on CBC’s Mainstreet, including evidence showing this disorder is treatable through medication, light therapy or cognitive-behavioural therapy. Listen to the audio clip to learn more.