Humans are something like 70% water… How? Where is all the water?

Question

Humans are something like 70% water… How? Where is all the water?

In: Biology

Answer 1

These numbers aren’t precisely correct, but pretty close:

Your body is 2/3 water.

2/3 of total body water is inside cells.

Of the stuff that’s outside cells, 2/3 is “loose” inside your tissues (“interstitial fluid”) and 1/3 is in the bloodstream.

(Peanut gallery: what about blood cells? There’s water inside cells AND in the bloodstream. Yeah, yeah, I said these were approximations.)