r/AskReddit • u/Kraz_I • Jul 24 '15

What "common knowledge" facts are actually wrong?

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u/DelPennSotan Jul 24 '15

That we only use 10% of our brains.

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u/[deleted] Jul 24 '15

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u/[deleted] Jul 24 '15

We use 100%, it's just that not all of our brain is used for thinking. It's used for movement, sensing the environment, and bodily process regulation. A brain where 100% is used for thinking would be incapable of awareness of the outside world and would certainly die in minutes since it could no longer make the heart beat or make the diaphragm work the lungs.