The brain weighs just 3 pounds (about 1.3 kg) and is a wrinkly, pink organ that feels a bit like a soft mushroom.
Hmm, not sure we want to touch it too much! It is about 6 inches long (16cm), about 5.5 inches wide (14cm) and nearly 4 inches deep (10cm).
But this magical machine controls everything you do from thinking, learning, feeling emotions, even breathing and your heart rate.
This is one seriously complex organ that has baffled scientists for years.
Even though the brain is just 2% of your body weight, it uses around 20% of all your energy from the blood and oxygen in your body. That’s a lot for such a small organ. Your brain stops growing when you're 18, but don’t be calling your parents silly just yet. It actually keeps on developing and learns new things until you’re in your 40’s. So your parents are really super smart! You won’t be able to fool them.
Ever see a picture of a person with a light bulb over their heads? Well this fact puts a whole new light on those pictures (“new light” – get it?). Did you know that your brain actually produces enough electricity to power a light bulb? Yep, it’s true! It would be cool to know how to actually power up that light bulb with our brains, maybe someday we’ll know.
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