Central Nervous System
How Much Does the Human Brain Weigh
Q: How much does the human brain weigh?
How much does the human brain weigh?
An average adult human brain weighs between 1 and 1.5 kg (3 lb). An adult brain uses about 20-25% of the total energy used by the body, while the developing brain of an infant consumes around 60% of the total energy used by the body.
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