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'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.'
TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts.