apparently the key to happiness is to have a long and shitty winter
and if you can’t have that, surround yourself with deadly wildlife
or maybe these countries have free or reasonably priced health care, good education and costs nothing or very little, marriage equality(not all do however on the list but they at least aren’t extremely homophobic either), decent minimum wages, stable economies, low crime rates and so forth and also deadly wildlife because we protect our environment
No we have gun control
It could also be a low population density.
Or it might be the fact that despite the fact that most of these country’s also have the highest rate of anti-depressant usage, racism toward immigrants and economies that are only successful for the most part because of oil, they also mostly share a culture that makes it socially unacceptable for them to tell anyone they aren’t happy, especially strangers like, say, the people who would be conducting the study in question.
Not to mention Scandinavia has some of the highest suicide rates in the world.
“Herpty derp, lemme just post memes about all of these beautiful liberal paradises without bothering to do any further research.”