I’m pretty skeptical of this because it seems to conflict with common sense and personal experience but I’ll look a bit more. I wonder to what degree they contr

I’m pretty skeptical of this because it seems to conflict with common sense and personal experience but I’ll look a bit more. I wonder to what degree they controlled for health effects of short days, less sunlight, more time indoors, increased infectious disease in cold months, poverty, etc. I doubt they are finding people that do a lot of outdoor winter sports for example have increased health problems vs people that just sit inside.