Fake it 'tlil you make it - does your body language shapes who you are?

Amy Cuddy’s research on body language presentation at TED on 2012, focused on research that shows how body language can change other people’s perceptions — and perhaps even our own body chemistry.

If we know that our minds change our bodies, it is also true that our bodies change our minds?  - it is the "Fake it 'til you make it" aphorism suggesting that by imitating confidence, competence, and an optimistic mindset, a person can realize those qualities in their real life.

This is one of the most viewed TED talks  and also most debated.