The brain is endlessly complicated and there are so many surprises inside your head. Which of these facts about your brain is NOT true?

Answer You only use 10% at any given time.

The idea that you only use 10% of your brain is a long-standing myth. There's even a Wikipedia page called "Ten percent of the brain myth," on which the myth is attributed to many people, including none other than Albert Einstein. In fact, people use a lot of their brain all the time, even when they're sleeping.

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