A Answers (1)
Once food breezes past the toll booth (your mouth), it accelerates onto the on-ramp of the esophagus—that's the tube that links your mouth to the interstate that is your GI system. Slide a double Whopper down the on-ramp and it has to make a tricky merge, in the form of a sharp turn to enter the stomach.
That angle—the gastro-esophageal junction—is what keeps stomach acid from spilling back into your esophagus and making your chest feel like an arson victim.
When you have extra fat in your belly, that angle is pried open, allowing acid to spill upward and cause that heart-burning effect.
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