Comment on Why don't my shit and urine stink while they're inside me?
scytale@piefed.zip 12 hours ago
Your asshole isn’t just open all the time. And even then, there are a couple of gates (sphincters) that prevent a straight through passage from your bowels to the outside of your body.
TranquilTurbulence@lemmy.zip 9 hours ago
And the rest of your body is reasonably water proof and gas proof. Whatever is on one side of a membrane, is not allowed to cross to the other side. Actually, your body is working hard to keep it that way. If something is allowed to cross that border, it’s an exception and it’s highly regulated.