View full lesson: http://ed.ted.com/lessons/your-body-language-shapes-who-you-are-amy-cuddy

Body language affects how others see us, but it may also change how we see ourselves. Social psychologist Amy Cuddy shows how "power posing" -- standing in a posture of confidence, even when we don't feel confident -- can affect testosterone and cortisol levels in the brain, and might even have an impact on our chances for success.

Talk by Amy Cuddy.

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