it is 80% not 90%
I believe the answer is water.
Around 70% (although the brain is thought to be 90% water)
The Human Brain Consists of 80% water x
80 percent of your brain is water. :)
If you mean "How much percentage of water does a human brain have?", the answer is about 77-78%.
The brain is composed of 70 percent water,
75% of the brain is water
The Human brain has 75 percentage of water.
77 to 78 percent
80% of brain is water. Brain is jelly like in vivo and not solid organ is seen in post mortem specimen or on TV.
This is a fact, not an insult.