Neuroscientist Diana Tamir found that your brain gets more pleasure from you talking about yourself than it does from food or money. This is why you … - Eric Barker

Luck School. If he got unlucky people to behave more like lucky people, would they get the same results? Turns out they did. Afterward, 80 percent of Luck School graduates felt their luck had increased. And they weren’t just luckier; they also came away happier.

"Jeff Hall's research found that it took as many as sixty hours to develop a light friendship, sometimes one hundred hours to get to full-fledged "friend" status, and two hundred or more hours to unlock the vaunted "best friend" achievement...

Hall also found that how people talked mattered. We've all hit that wall with a potential friend where the small talk starts to go in circles...

Want to make good friends without the dozens of hours?... Arthur Aron got strangers to feel like lifelong pals in just forty-five minutes. How? Well that leads us to our second costly signal: vulnerability."

The groups you associate with often determine the type of person you become. For people who want improved health, association with other healthy people is usually the strongest and most direct path of change.