Finding your power through body language

From James Clear (JamesClear.com): 

Amy Cuddy is a researcher at Harvard University who studies body language and the impact it has on your hormones. Cuddy and her team have classified different body positions as “high power” or “low power” poses. In general, the high power poses are open and relaxed while the low power poses are closed and guarded.
— http://jamesclear.com/body-language-how-to-be-confident