FIJI WORLD'S HAPPIEST NATION : POLL

Measured against elements of state happiness, Fiji is the happiest nation in the world while Iraq the unhappiest in 2014.

As Gallup-Healthways explains, “Globally, higher well-being correlates with outcomes indicative of stability and resilience — for example, healthcare utilization, intent to migrate, trust in elections and local institutions, daily stress, food/shelter security, volunteerism and willingness to help strangers.”

The survey essentially gauged own perceptions of well-being and four other factors that contribute to it: social well-being, community well-being (measuring whether an individual likes where they live), the presence of purpose and physical health.