Question

What is the approximate percentage (in mass) of water in the human body? Is this percentage expected to be larger in the ***** or in the old individual?

Answer 1

Approximately 65% of the human individual mass is water. The brain, for example has around 90% of water in mass, the muscles, 85%, and the bones have between 25% and 40% of water.

Younger ***** individuals have proportionally more water in mass than older individuals.