Gastroesophageal reflux disease(GERD) mainly related to the reflux of stomach content induced by the dysfunction of lower esophageal sphincter. Proton pump inhibitors (PPI) can effectively block gastric acid secretion but the drug reactions and the degree of improvement in symptoms are sometimes unpredictable. The aim of this study is to investigate the association between the clinical efficacy of PPI in patients with GERD and the personal physical status by Ryodoraku and ANSWatch.