Drinking beer hiccups and stomach stimulation, diaphragmatic spasm, gas production in the stomach. Beer has a certain degree of irritation, beer into the stomach will cause stimulation of the stomach wall, the stomach wall will be stimulated by the stress response, the smooth muscle of the stomach will appear strong contraction spasm, which will induce hiccups performance. In the contraction of the stomach wall at the same time, will inevitably cause a certain degree of involvement of the diaphragm, in the diaphragm is stimulated by spasm contraction, will also cause hiccups. Beer contains a large amount of carbon dioxide, after entering the stomach carbon dioxide will be gradually released, so the breath in the stomach will gradually increase, resulting in the gradual expansion of the stomach body. This dilation of the stomach not only causes irritation to the diaphragm, but also increases the pressure on the stomach lining when the gas accumulates excessively, at which point some of the gas is released through the esophagus to relieve the pressure on the stomach.