Countries like Finland and Iceland are consistently in the top 5 of happiest countries in the world. Of course that has many non-related reasons, but the effect of intense winters can't be too bad.
Finland and Iceland also have some of the highest suicide rates in Europe. It seems that the correlation between happiness (or well-being) and suicide is complex.
Which makes sense: it can be isolating if everyone around you seems to be thriving and you aren't.
Which makes sense: it can be isolating if everyone around you seems to be thriving and you aren't.