10 Mind-Blowing Facts You Didn’t Learn in School

You won't learn this in school- but your brain can't actually feel pain. That's why surgeons

can operate on the brain while you're awake. You won't learn this in school-but

bananas are radioactive. They contain potassium that naturally gives off radiation

You won't learn this in school- but octopuses have three hearts and two of them

stop beating when they swim. You won't learn this in school-but humans glow in the

dark. The light is just too weak for our eyes to see. You won't learn

this in school- but your stomach gets a brand-new lining every few days

so it doesn't digest itself. You won't learn this in school- but there are more