Good friends are hard to come by, but having them could make you happy and healthy.
Happify, a website and app that offers science-based activities and games to help people build skills for greater happiness, compiled all of the benefits of friendship into one handy graphic. No wonder the ladies from "Sex and the City" were always glowing. Friends have been proven to help prolong lifespans, pick you up when you're sad and even improve work performance.
After reading this, you should probably find a friend and thank them.