Dr. Amy Cuddy is a social psychologist and researcher at Harvard Business School, where she studies how nonverbal behavior and snap judgments affect people from the classroom to the boardroom.

In her famous TEDx talk that was seen by over 36 million people, Dr. Cuddy explains how body language affects how others see us, but it may also change how we see ourselves. She 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.

The Superhero Pose is an example of what psychologists refer to as an open posture, in which limbs are spread out in a way to take up more space—such as legs apart. Open postures contrast with closed postures, in which the body takes up relatively little space. Numerous psychological studies have demonstrated that open postures convey a sense of the individual having power.

Watch this video and try out the Superhero Pose for yourself. We think you’ll be surprised by the positive effect!