It's easy to think of the body as a rubber bag, where you put materials in and you get materials out. The bit that's being forgotten here is that the precise materials that you put into the rubber bag interact with each other and the bag itself so you get different amounts of materials out depending on what you put in.
.....reading this makes me feel like a stoned student all over again.....
.....reading this makes me feel like a stoned student all over again.....