Seasonal Affective Disorder, the condition where people become depressed because of the lack of sunlight in the winter time, is probably myth, scientists have concluded.
A large scale study of adults in the US found that levels of depressive symptoms do not change from season to season or in different levels of light.
The researchers concluded that the findings are ‘inconsistent with the notion of seasonal depression as a commonly occurring disorder.’
Amount of light affects human beings. That’s why melanin concentrations. That’s why places like Tromso, Norilsk, have place you can go and sit in some nice bright light in the middle of winter.
Whether you call the resultant blues from not getting in SAD or vitamin deficiency doesn’t matter all that much.
And you could possibly call it Seasonal Affective Rage too: Moscow in February, from experience, is packed with people going more than slightly nuts. Sure, you an call it cabin fever too but my own experience leads to light as being the crucial item. And of course, as ever, anecdata trumps anything the boffins might be saying.