What percentage of the human brain is water?

  • 10%
  • 25%
  • 73% correct

    Water is so important to the human body. 64% of your skin contains water, your muscles and kidneys are 79%, your bones are made of 31% water and even your brain is 73% water. Make sure that you are getting your hydration by drinking between 2.2 to 3 liters of water a day! Source: USGS Water Science School

  • 99%
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  • Fact of the day

    Both of Jack Black’s parents were rocket scientists.
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