Agencies (Qasioun) - A chilly climate isn't keeping Norway from basking in the glow of being named the world's happiest country on Monday.
The Scandinavian country surged from fourth place in last year's UN assessment all the way to the top spot, according to the World Happiness Report 2017.
Other top countries on the list included Nordic neighbours Denmark and Iceland, as well as Switzerland. Among the 20 nations at the bottom of the rankings, five were in the Middle East and North Africa and five were in sub-Saharan Africa.
Rounding out the top 10 were Finland, in fifth place, The Netherlands (6), Canada (7), New Zealand (8) and Australia and Sweden tied for 9th.
In fact, among the wealthier countries the differences in happiness levels had a lot to do with "differences in mental health, physical health and personal relationships: the biggest single source of misery is mental illness", the report said.