Why hiccups?

There are three reasons for hiccups: 1. Unreasonable eating habits. Such as overeating, or eating faster, eating into a lot of air, or drinking carbonated drinks. 2. Emotional hiccups. Such as work pressure, depression, will affect the liver, causing stomach qi reverse, will form hiccups. 3. Disease factors, such as gastroesophageal reflux disease, digestive tract ulcers, food accumulation for too long will also cause hiccups.