Your body language may shape who you are
by Amy Cuddy
Mixed / ContestedAmy Cuddy’s landmark TED Talk explores how body language influences not just how others perceive us, but how we perceive ourselves. She presents research suggesting that adopting “power poses” — expansive, open body positions — for just two minutes can alter hormone levels and increase feelings of confidence and power.
Key Arguments
- Nonverbals govern how we think and feel about ourselves. Our body language shapes our internal state, not just our external presentation.
- “Fake it till you become it.” Cuddy argues that deliberately adopting confident postures can eventually lead to genuine feelings of confidence and competence.
- Two minutes can make a difference. Brief postural changes before high-stakes situations (job interviews, presentations) may improve performance.
Evidence Context
The original Carney, Cuddy, and Yap (2010) study has been one of the most debated findings in social psychology. While the hormonal claims have not replicated consistently, multiple studies have found that expansive postures do affect self-reported confidence and willingness to take risks. This makes the talk’s practical advice potentially useful even as the scientific mechanism remains contested.
Evidence: mixed / contested
Original power-pose findings (Carney et al. 2010) partially replicated. Hormonal effects not confirmed in larger studies, but self-reported confidence effects have been supported. The talk's core advice — adopting expansive postures before stressful situations — has practical support even if the hormonal mechanism is disputed.