SAD is one of those things where I've read articles and research from what I think are at least semi trustworthy sources both swearing that it is a real thing a

SAD is one of those things where I've read articles and research from what I think are at least semi trustworthy sources both swearing that it is a real thing and that it is not a real thing. Anecdotally it seems like a scam to try and sell you overpriced LED lights, but the more you google the more you find some people swear it affects them, even though I've never felt the difference. This together with the fact that I was born and grew up in a place with ~3050 average annual sunlight hours per year, as well as lived in places with ~1500 for the past 5 years without any perceived difference in mood.