Running dry vomiting has the following conditions: 1, the digestive system is affected, running a lot of blood from the digestive system into the heart and lungs and muscles, the digestive system function will be affected, especially in the process of running to replenish energy or run immediately after eating, it is easy to dry vomiting. 2, too much pressure on the stomach, running the stomach to bear a lot of pressure, the stomach food may be squeezed into the esophagus and trigger 3, intake of inappropriate drinks and food, such as acidic fruit, acidic drinks, soda, food and drinks will increase the acidity of the stomach, the food eaten into the small intestine will slow down, it may lead to dry vomiting. Do not ingest drinks and food before running to avoid aggravating the burden on the stomach to trigger dry heaving.