What's the superstition of old hiccups?

There are several reasons for burping without superstition: burping is often caused by overeating. There are many reasons for burping, including functional or organic changes of stomach and esophagus. There are also external physical, biochemical and physical stimuli. For example, too much air enters the stomach and overflows from the mouth, mental and neurological factors (such as vagus nerve excitement and pyloric spasm), bad eating habits (such as eating and drinking too fast), and excessive swallowing (such as too much or too little saliva). However, gastrointestinal neurosis and chronic gastrointestinal diseases cause frequent gastric peristalsis, which is not easy to improve during treatment.

Don't worry when burping. If it is caused by overeating and eating too fast, it can be relieved automatically within a few minutes. If it is caused by chronic diseases, it will be fine after spasmolysis and gastric motility treatment. But don't drink cold drinks or do strenuous exercise when you burp.