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Your brain is gluttonous! Though your brain comprises only 3% of your bodyweight, it receives 30% of the blood that is pumped by your heart.

So, the brain is greedy in the sense that it requires a great deal of the blood supply in comparison to other parts of the body.

Continue with the IQ test afterwards

So, the brain is greedy in the sense that it requires a great deal of the blood supply in comparison to other parts of the body.