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What percentage of the human body is water?


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Up to 60 percent of the human body is water, the brain is composed of 70 percent water, and the lungs are nearly 90 percent water.

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Up to 70 percent of our body is water! Drink lots of fluids, and ChaCha often!

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The human body is 65 percent water, and it takes an average of eight to ten cups to replenish the water our bodies lose each day.

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Brain 75%, Heart 75%, Lungs 86%, Muscle 75%, Liver 85%, Kidney 83%, Bone 22%, Blood 83%, Saliva 95%, Perspiration 95%.

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An average adult body is 50 to 65 percent water -- that's roughly 45 quarts. Thanks for using ChaCha. We are here 24/7. Ask away.

Answered by Jan T. -

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The human body is 65 percent water. Thanks for using ChaCha!

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In adult men, about 60% of their bodies are water women about 55% of thier bodies made of water.

Answered by William S. -

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About 60% for adult men, and 55% for adult women. ChaCha!

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