https://news.gallup.com/opinion/gallup/657998/kinder-world-happier-one.aspx
"These findings reaffirm what social scientists have long suggested: Benevolence benefits both the giver and the receiver. Engaging in acts of kindness provides a psychological boost and creates a ripple effect, encouraging others to do the same...
People who regularly engage in benevolent acts -- such as helping a stranger, volunteering or donating -- report higher life satisfaction than those who don't. But the benefits aren't just about feeling good in the moment. Long-term studies show that sustained acts of generosity lead to improved mental and physical health, stronger social connections, and even longer lifespans....
New evidence shows acts of generosity and the belief in others' goodwill are significant predictors of happiness, even more so than earning a higher salary...."
