The esophagus is the tube that carries food from the throat to the stomach. The stomach makes acid to digest the food. Sometimes the acid can back up into the esophagus. This can cause symptoms such as heartburn or even a sour taste in your mouth. When it happens often and over a long period of time, it is called GERD. Many people have heartburn once in awhile. Others have GERD that is not too bad. They can keep it under control by lifestyle changes. Antacids or other over-the-counter medicines can also help.
食管是将食物从咽喉输送到胃的管道。胃会产生胃酸来消化食物。有时胃酸会反流至食管。这可能会导致烧心等症状，甚至嘴里会有酸味。如果这种情况经常且长时间发生，就称为胃食管反流病（GERD）。很多人偶尔会出现烧心症状。还有些人患有不太严重的胃食管反流病。他们可以通过改变生活方式来控制病情。抗酸剂或其他非处方药物也会有所帮助。
