Norway can be frigid. And the winters bring lots of darkness. But it’s the happiest nation in the world, according to the 2017 World Happiness Report. Denmark comes in at #2, followed by Iceland and Switzerland. Finland takes 5th place. And, it turns out, these countries have more in common than a tolerance for cold. Well-being is shaped by a range of factors. “All of the top countries rank highly on all the main factors found