How common are Winter Blues and SAD?
Winter Blues and SAD tend to be more common as you move further from the equator.Winter days are shorter and daylight decreases as you move toward the North or South Poles. Perhaps 25% of people in the northern US & Canada suffer from Winter Blues, with 15-30% of these have SAD.People living in lower latitudes may also experience Winter Blues if they spend their days in offices that are typically much less bright than outdoors or if their winter weather is cloudy.
