If you’re unhappy with your life in any way, it’s easy to think a change of pace would make all the difference: If you could just land a new job, move to a new city, or achieve more success, you know you’d be happier.

Think again. Turns out, only 10% of your happiness is determined by your external world—the rest is based on how you look at it. What’s more, being happy is likely to make you more successful, not the other way around.

In this highly entertaining video, positive psychologist Shawn Achor explains the surprising science behind happiness and success. He’ll make you laugh, he’ll make you rethink your happiness equation, and he’ll give you some small, simple changes you can make to improve your positivity every day.

Video courtesy of TED.