This weekend marks the point across Europe when autumn becomes early winter and everything suddenly seems darker (most north Americans get an extra week before daylight saving). For most of us, it’s a negligible transition: an extra hour in bed, then lowering skies, a winter hiatus before the year starts again.
But for a small minority, winter exacts a heavy toll. In the UK, about 3% of the population are estimated to suffer from seasonal affective disorder, a debilitating illness which prevents those affected from functioning normally without appropriate treatment. About 20% of people in the UK experience mildly debilitating symptoms of Sad, called “subsyndromal Sad” or “winter blues”.
http://www.theguardian.com/uk-news/2...ctive-disorder
If anything I experience mild "winter blues "