Brain & Nervous System: Overview

Do humans really only use 10 to 20 percent of their brains?

There are many different nonscientific answers to this question. A wife might argue that her husband uses less than 10 percent of his brain at times, a coach often tells his players that they aren't using their heads enough, and we often think that our politicians don't use their brains at all. The truth is that there is no way to quantify how much of our brains we use at any given time. Humans definitely use more than 10 to 20 percent of their brains, so this myth is definitely false.