As we enter the 21st century, people’s living standards continue to improve and a higher quality of life becomes the goal that everyone pursues. But how many people are troubled by heartburn and acid reflux after a good meal, how many people seek medical help for a chronic dry cough that cannot be cured, and how many people are anxious because they cannot rest because of a sudden cough and wheezing at night? All this may be due to a familiar and unfamiliar disease that seems to be mild but is actually terrible – gastroesophageal reflux disease (GERD). GERD is a disease that causes discomfort and/or complications due to the reflux of stomach contents. The disease not only affects your daily work, study, life, and sleep, causing you distress, but if left untreated, it can lead to various serious complications, even cancer and death. As the pace of life accelerates and the pressure of work life increases, the incidence of GERD is increasing and more and more white-collar workers are suffering from the pain and distress caused by GERD…