re: Why do people in Nordic countries consistently rank as the happiest and what can we learn?

I've been lucky to have been to Norway, Denmark and Sweden. I think over all it's a fairly simple answer (besides the women). Money. Countries with higher per capita incomes are generally happier than those with lower ones.

Second, they provide citizens with a "strong safety net", including things like universal healthcare, unemployment benefits, childcare subsidies, and other social programs. I think this sense of financial security reduces stress and worry about basic necessities, contributing to overall well-being.

Third, "Work / Life Balance". They don't bust their asses like we do in America "to get ahead". They spend more time with their families, travel etc.