How Much Does the Human Head Weigh?

The typical human head weighs between 10 and 11 pounds. This represents around 8 percent of the human body’s mass. The average human adult brain weighs just about 3 pounds, hence the majority of the head’s mass consists of the skull and other fluids.

Human brains are roughly three times heavier than those of chimpanzees and four and a half times smaller than those of elephants. Albert Einstein’s brain was smaller than ordinary, weighing just approximately 2.7 pounds, yet it contained more glial cells than usual. There are more than 100 billion brain cells in humans, and some of them survive the full human lifespan.

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