Why doesn’t your stomach digest itself—even with acid as strong as pH 1?
Ever wonder why our stomach doesn’t just digest itself?It produces gastric acid with a super low pH—around 1—2 to break down food and kill bacteria. Sounds intense, right? But your stomach has a smart defense: a thick, alkaline mucus layer that coats and protects its lining. This layer is packed with bicarbonate (HCO₃⁻), which neutralizes […]