It would be interesting if that is a major factor. For most the darkness is probably a major factor. Not only in that region, but alcohol consumption in the nor

It would be interesting if that is a major factor. For most the darkness is probably a major factor. Not only in that region, but alcohol consumption in the northern European countries is quite high. Anecdotal evidence from Finland is that everyone is drunk after work, especially on Fridays. It is difficult to find anyone sober. Perhaps it was only my special colleagues though... Difficult study though. I don't know how much coal mining is still active, probably not too much. I guess space weathers primary effect would be cancer rates because of the radiation but mining work probably has an influence too. Otherwise the sometimes colorful night sky might at least offer some solace for the long darkness. Last summer I searched for jobs as a software dev in that region because it was so hot... Not seriously of course but there are a few opportunities if someone needs to escape the heat.