本文作者：SAM医生
WhatIsAcidRefluxDisease?
中国人常说的“反酸”、“烧心”是什么病？
Attheentrancetoyourstomachisavalve,whichisaringofmusclecalledtheloweresophagealsphincter(LES).Normally,theLESclosesassoonasfoodpassesthroughit.IftheLESdoesntcloseallthewayorifitopenstoooften,acidproducedbyyourstomachcanmoveupintoyouresophagus.Thiscancausesymptomssuchasaburningchestdis
