I know that diarrhea is when the intestines don’t absorb enough water back out of one’s food, but how is this related to the ‘rumbling’ you experience, both in terms of feeling your body do that and the fact it happens loud enough to be heard?
In: Biology
The rumbling comes from your body actually moving the waste around inside of you. The gassed that your stool produces gets moved downwards toward your butt. Your inner muscles are so good at fine movements that they can move that gas around your stool, even when it’s soft and liquid like diarrhea. This can also serve to break up your stool when you get constipated.
It’s called peristalsis, and it’s your gastrointestinal muscles moving waste and gas down toward your anal sphincter. It’s the exact same mechanism and sound that occurs when you’re very hungry and you hear/feel your stomach rumbling.
Blow through a straw into a glass of ice.
Now do it into a glass of chocolate milk.
You shall have your answer.
Gasses make a ton more noise bubbling through liquid!
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