Below, a very interesting overview of human
digestion. Who knew: the stomach and colon
are acidic but the small intestine - where nutriment
absorption occurs - is actually akaline, a transition
made to happen thanks to secretions from the pancreas
and gallbladder.
This takes us to a most unfunny joke. If someone runs
out of microbes in the small intestine, diarrhea occurs. So
what about people we send out in space? Yikes, Amazon does't
deliver on Mars. Years of diarrhea for some poor person.
Worth worrying about!
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