Amy Cuddy, who holds a Ph.D. in social psychology, gave a now-famous TED talk about "power-posing" in 2012. Making certain changes to your body language can make you feel more confident ...

Stop it. And what you've done is you've just mouthed a word, your brain has had to use many of the centers to even formulate that, so you are using much more of the power of your brain ...

Actually, the reverse is true: "If you can raise somebody's level of positivity in the present ... and more intelligently." In the TED talk that launched a thousand articles — so many articles ...