At present, esophageal cancer has become one of the biggest killers of human health, and China is a high incidence area for esophageal cancer, and the deaths due to esophageal cancer are second only to stomach cancer. It is surprising that the cause of esophageal cancer is partly caused by incorrect sleeping posture, what is going on? 1. As many people know, the development of esophageal cancer is closely related to personal lifestyle, especially dietary habits. Stale, pickled and smoked foods are the “high-risk” foods that lead to esophageal cancer. Besides, unhealthy diet is also one of the important factors leading to esophageal cancer, such as eating too hard and too fast, unbalanced diet, partial diet, smoking and alcohol abuse, and irregular diet, etc. Besides diet, the development of esophageal cancer is also related to bad sleeping posture, especially for people with poor digestion. In daily life, a good sleeping posture not only enables people to achieve better sleep quality, but also adds points to their health. In contrast, bad sleeping posture will damage the body organs, and even induce a variety of diseases, such as side lying easy to cause cerebral thrombosis, prone to induce hypertension, heart disease, ambulation and sleep will make the eyes distended, sitting snooze will lead to brain hypoxia, etc.. 3.The reason why bad sleeping posture can induce esophageal cancer is closely related to the body structure of human body. According to daily sleeping habits, many people like to sleep on the right side, but research has found that the stomach is higher than the esophagus when sleeping on the right side, which provides favorable conditions for stomach acid to flow back to the esophagus. When the amount of acidic fluid in the esophagus is more than normal and persistent, it can easily cause burning pain in the stomach. In the long run, it will easily trigger coughing, shortness of breath, tight pressure in the chest, etc., which may cause esophageal reflux and even become one of the triggering factors for esophageal cancer in serious cases. Therefore, developing good sleep habits is an essential part of maintaining a healthy body. First of all, we should adjust our sleep rhythm to ensure sufficient sleep and fall asleep on time every day. Secondly, a quiet environment with appropriate temperature, fresh air and soft tones can also help to improve the quality of sleep. Furthermore, eating habits can also affect the quality of sleep. Fasting and full stomachs can make it difficult to fall asleep quickly, while smoking and drinking can cause a certain degree of excitement and psychological dependence, which not only do not help sleep, but also affect the quality of sleep. Finally, people with digestive tract diseases are recommended to lie on the left side, which helps prevent gastroesophageal reflux, promotes digestion, prevents heartburn, and is beneficial for the prevention of esophageal cancer and other diseases. Health knowledge popularization Sleep is an active process of the human body, which can restore the spirit and relieve fatigue. Adequate sleep, balanced diet and proper exercise are three internationally recognized health standards. In order to raise awareness of the importance of sleep, the Global Sleep and Health Program, sponsored by the International Foundation for Mental Health and Neuroscience, launched a global campaign in 2001, which focused on raising awareness of the importance of sleep and sleep quality, and in 2003, the China Sleep Research Association introduced World Sleep Day to China.