Body language is older and more innate for us as humans than even language or facial expressions. That’s why people born blind can perform the same body language expressions as people who can see. They come pre-programmed with our brains.
I’ve always been incredibly fascinated with body language and how it helps us achieve our goals in life. The power of body language is probably best described by Amy Cuddy’s famous quote:
via Why You Should Never Cross Your Arms Again | Entrepreneur.com.