The World Health Organization says that nearly half of the new gastric cancers discovered each year are related to Helicobacter pylori infection. About 60% of people in China are infected with Helicobacter pylori and are therefore prone to gastric cancer. Removing H. pylori infection from the stomach can reduce the risk of precancerous lesions and gastric cancer by 40%. To prevent H. pylori infection from entering the mouth, wash your hands before and after meals, try to eat cooked food heated at high temperatures, drink boiled water, and wash raw fruits and vegetables. Vices 2, like to eat bacon and pickles Salt cured vegetables, bacon and smoked fish contain a large number of nitrates and nitrites, in the stomach can be converted into a strong carcinogenic substances. The incidence of stomach cancer is significantly higher in Japan, China and Korea, which like to eat bacon and pickles than elsewhere. Also, eating large amounts of red meat, irregular meals, and food that is too hard and too hot also increase the risk of stomach cancer. Vitamins C and E can stop the formation of carcinogenic nitrite, eat more fresh fruits, vegetables, beans and dairy products, eat less fried, pickled and smoked food, do not eat moldy food, use the refrigerator to store food, and good eating habits are protective factors to prevent gastric cancer. The study confirmed that smoking doubles the relative risk of gastric cancer, while the relative risk of gastric cancer among those who smoke and drink increases by 5 times. The study followed 69,962 adults and found that the risk of stomach cancer increased by 88% among daily smokers compared to never smokers, and the earlier the age of smoking, the more times a day and the longer the duration of smoking, the higher the risk of stomach cancer. Compared with people who do not smoke or drink, those who smoke more than 20 cigarettes a day and drink alcohol more than 5 times every 2 weeks have 4.9 times higher risk of stomach cancer. Vices 4, sulking Modern medical research has shown that after a series of stressful or sad events, lymphocyte activity decreases and immune function is suppressed, which creates conditions for tumor development. Our past epidemiological studies have repeatedly reported that patients with stomach cancer are characterized by “introversion and sulking”.