It doesn’t take 21 days to wire in a habit, says psychologist BJ Fogg. Sometimes, all you need is a shot of positive feeling and emotion, a dose of celebration. Celebrating is a great way to reinforce small changes — and pave the way for big successes.

Neuroscientist Robert Sapolsky shows us the surprising ways that our brains get mixed up between the physical and metaphorical — and how this can pit us against each other.

Psychologist Paul Bloom studies the nature of pleasure. In this conversation with Ben Lillie, he discusses how knowing the history of an object can profoundly affect our enjoyment of it.

How to be good at stress | ideas.ted.com

What does it mean to be “good” at stress? Does it mean that you don’t get stressed out? That you stay calm under pressure and bounce back from adversity? Not exactly. Stress researcher Kelly McGonigal shares her surprising findings.

Is there a connection between language and how we think and behave? Economist Keith Chen thinks so — and he argues that our mother tongue even affects our economic decisions.