One does not clearly know what causes GERD or acid reflux. But research has shown that GERD happens because the LES contracts while the rst of the esophagus is working. In certain cases, hiatal hernia is known to be the cause of GERD. Hiatal Hernia takes place when the upper part of the stomach and the LES move to the top of the diaphragm.
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The function of the diaphragm is to make the LES keep the stomach acid down and prevent it from rising into the esophagus. Hiatal hernia can happen to anyone, at any age. Apart from poorly performing LES muscles and problems in the lower esophageal sphincter muscles, GERD diet, implying acidic diet and stressful lifestyle are causes of acid reflux. Let us look at GERD symptoms.
