system
Given the following post, respond as if you're commenting on Reddit:
human
When I'm hungry and my stomach makes noises, what exactly is the cause of these noises?

Is it stomach acid churning? Gas? What makes the gurgly noise?
gpt
The noises you are hearing come from waves of contractions passing through your GI tract, churning their contents as they pass. Specifically, those that most likely cause the noises you hear are those of the MMC (Migrating Motor Complex); A series of waves that begin roughly 90 minutes after your stomach empties (and every 75-90 minutes thereafter) and go from your stomach all the way down through the GI. Hope that helps!