the.com/reflux

Your stomach acid filing a formal complaint, loudly, in the middle of the night.

means The backward flow of stomach contents (especially acid) up into the esophagus, or more broadly, any liquid flowing back against its normal direction.

from Straight from Latin: 're-' meaning 'back' plus 'fluere' meaning 'to flow' — the same 'fluere' that gives us 'fluid' and 'fluent.' So reflux is, quite literally, a 'flowing back.' Chemists used it first for liquids circulating back into a vessel during distillation; medicine later borrowed the word for the much less elegant business of acid flowing where it shouldn't.

culprit
loose valve between esophagus and stomach
worst trigger
lying down right after eating
chronic version
called GERD, can erode esophagus lining
common myth
spicy food causes it, usually just worsens it
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