
© R.M. Nunes/ShutterstockIguazu Falls borders Argentina, Brazil and Paraguay — the happiest country in the world, according to thousands of interviews.
It's a tough world out there, a new report on the emotional well-being of people worldwide shows.
In the survey, pollsters asked nearly 150,000 people in 142 countries to rate their levels of emotional positivity and negativity. They found that people's reports of their
positive emotions have stayed relatively constant over the past 10 years, but reports of
negative emotions have slowly crept up, reaching an all-time high in 2016, according to the Gallup Global Emotions Report.
The report also revealed that the world's happiest country is Paraguay, which placed first for the second year in a row. The least happy country was Yemen.
Researchers conducted the survey over the phone or by face-to-face interviews with people ages 15 or older. Syria, the least happy country in 2015, was not included this year because its ongoing civil war was a security issue, Gallup reported.
To learn about participants' positive experiences, pollsters asked people questions including whether they
felt well-rested, respected and enjoyed themselves the day before. For negative experiences, they asked about feeling physical pain, worry, sadness, stress and anger the day before. Gallup used these results to formulate an index score for each country.