Seasonal Affective Disorder was identified in the 1980s by ... While light boxes are not available on the NHS, they are recommended as a course of treatment by the British Association of ...

The American Psychiatric Association defines seasonal depression or seasonal affective disorder (SAD) as a form of depression caused by seasonal changes. The symptoms usually mimic that of normal ...

But experts say seasonal affective disorder, or SAD, isn’t just a wintertime issue. Some people actually experience depression during the summer months. The summer SAD is less common and less ...