10 Mind-Blowing Facts About The Brain

2. 100,000 Miles of Blood Vessels in the Brain

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There are about a hundred billions neurons that comprize the entire galaxy, that is the same number that they have squished into the powerhouse we call a brain.  The brain uses approx 17% of the body’s energy, and 20% of it’s oxygen, while only taking up 2% of the available space in your body.

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