The weight of an average human brain is about 1300-1400g - @ 3lbs i.e., almost one bag of sugar. It's smaller than an elephant's brain (6000g) but bigger than
a monkey's brain (95g)! Your brain uses approximately 20% of the total oxygen pumping around your body and about 750ml of blood pumps through your brain every minute!
Your skin weighs twice as much as your brain! And did you know the human brain is approximately 75% water?
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