Congo, Zimbabwe and Burundi are inhabited by some of the least happy minds.
Download World Map of Happiness - Intensity of Red Color Denotes Level of Happiness.
Happiness is being healthy, wealthy and wise according to Adrian White, of the University of Leicester in England who is one of map creators.
The scientists revealed that the map had thrown up many interesting results, including the relatively low performance of Asian economic powers China, Japan and India.
Happiness World Map | Leicester Press Release | CNN