The 2024 World Happiness Report, which ranks the happiness levels of countries around the world, found that young Americans are less happy than their peers in many other countries. Psychology professor Lara Aknin, PhD, an editor of the report, talks about how the report defines happiness, why young people’s happiness levels may have dropped in the U.S, what drives happiness, and why being generous makes people happy – even when they don’t have much to spare.