3...............number of full drink cans of blood that flows through the brain per minute...glug glug!1.3kg........weight of the brain
2% ......... percentage of your total body weight that the brain makes up
20%........ percentage of your total body energy that the brain uses
20%.........the percentage of inhaled oxygen used by the brain
78%.........the perceptage brain composed of water (the rest is mainly lipids/protein)
100 billion....the number of neurons in the brain
Yes, one fifth of your total energy is used by the brain, yet the brain only makes up 2% of your body weight. What does the brain use all this energy for? I'll wager learning gets a good share of it!
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