Gas is often produced by gut bacteria breaking down food. Trapping it for too long may cause minor shifts in the balance of that bacteria—especially if it leads to irregular bowel movements or constipation. Here’s a weird one: if you hold in your gas long enough, some of it might be reabsorbed into your bloodstream and exhaled through your lungs. That’s right—you could be breathing out tiny bits of fart. Not harmful, just… quirky.
