Amazing brain facts: how many did you guess right?

Your brain is an amazing organ - but how well do you know it? For instance, is it true that we only use around 10% of our brains? Can you really grow new brain cells as an adult? Would you believe it if someone told you that your brain uses about the same amount of power as a 15 watt light bulb?

Watch the video and find out how brainy you really are...

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