The part of the esophagus connected with the stomach, called the cardia, the sphincter of the cardia can effectively prevent the reflux of gastric contents, and once the sphincter its function is dysfunctional, acid reflux will occur, a condition clinically known as esophageal fissure dysfunction. If the diet is not structured properly and the food eaten for dinner is spicy and irritating, the chance of acid reflux will increase. For this condition, you can take countermeasures by having a light dinner, not drinking a lot of alcohol, keeping warm while sleeping, and taking oral medications that inhibit gastric acid secretion. For women in their childbearing years, if this occurs, it should be a normal pregnancy reaction after pregnancy.