Study: Envy is a powerful predictor of worse mental health and lower well-being in the future. Levels of envy fall as people grow older, but it's part of a broader pattern called the maturity principle. If one experiences a higher level of envy when one is younger, then one will have worse mental health outcomes as one grows older.
What does social media do to our self-esteem? How is envy affecting our politics? And should you go to your high school reunion?
Take the Seven Deadly Sins survey: freakonomics.com/nsq-sins/