eli5 – How can the human body be composed of 70% water when it feels and behaves like any other solid?

Question

eli5 – How can the human body be composed of 70% water when it feels and behaves like any other solid?

In: 18

Answer 1

There a lot of good answers here but I’ll add this note: humans *aren’t* 70% water. We’re closer to 50% (females tend to be lower, males tend to be higher), but even that percentage will fluctuate quite a bit during the day.