The 2019 World Happiness Index, an annual ranking released by the Sustainable Development Solutions Network for the United Nations, placed Finland, known for its strong education system and public safety, at the top of the list for the second year in a row. Its neighbors Denmark, Norway, Iceland, and Sweden were all in the top 10, as well. The ranking system considers freedom, generosity, income, trust, healthy life expectancy, and social support. The United States ranked as the 19th happiest country, down one spot from last year, and five spots from 2017. The report attributes America's decline in happiness to a rise in depression and an "epidemic of addictions," including substance abuse and poor diets. The report lists South Sudan as the least happy nation.
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