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Is 31,000,000 grains as heavy as a Human Brain?

It's about 1,500 times as heavy as a Human Brain
The weight of a Human Brain is about 20,800 grains.
(adult)
The average weight of an adult human brain is between 20,800 grains. In humans and primates, sight and vision utilize about 30 different parts of the brain which together account for about half of the brain's size.
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