The power of power poses Posted on September 19, 2014 by Farzana Doctor Can our body language affect our confidence? Amy Cuddy suggests that “power poses” held for 2 minutes can lower cortisol and increase testosterone levels in the brain. Share this:ShareClick to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Tumblr (Opens in new window)