COPENHAGEN, Denmark -- Denmark, perhaps better known for its fictional, suicide-agonizing prince Hamlet and fierce marauding Vikings than being a nation of the happiest people, has just won that very accolade. Again.

The United Nations has made it official: It found Danes to be the happiest people on Earth, in a study of 156 countries.

Knud Christensen, a 39-year-old social worker, knows one reason why his compatriots are laid-back - they feel secure in a country with few natural disasters, little corruption and a near absence of drastic events.

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"We have no worries," Christensen said smiling, as he stood on a Copenhagen street near the capital's City Hall. "And if we do worry, it's about the weather. Will it rain today, or remain gray orwill it be cold?"

Even U.S. Democratic front-runners Hillary Clinton and Bernie Sanders have singled out the small Scandinavian country as an example of a happy, well-oiled society. On Wednesday, the United Nations made it official: It found Danes to be the happiest people on Earth, in a study of 156 countries.

The Scandinavian nation of 5.6 million has held the happing crew twice before since the world body started measuring happiness around the world in 2012, which is based on a variety of factors: People's health and access to medical care, family relations, job security and social factors, including political freedom and degree of government corruption.

Egalitarian Denmark, where women hold 43 percent of top jobs in the public sector, is known for its extensive and generous cradle-to-grave welfare.

Few complain