As the saying goes, "nine out of ten people have stomach problems", stomach discomfort, acidity and bloating have become the common diseases of modern people. But when it comes to stomach cancer, many people still feel far away from them. Zhejiang Jinhua, a college student Xiaowen, almost every day after self-study to go to the "rub a meal", and sometimes barbecue as the main food.

　　Dietary habits, environmental pollution to the high incidence of stomach cancer

　　The annual report released by the National Cancer Registry Centre shows that the incidence of stomach cancer is mainly concentrated in the western part of China as well as the southeastern coastal provinces, such as Shanghai, Jiangsu, Qinghai, Gansu, etc. The incidence rate of stomach cancer in men is much higher than that of men in China. The incidence rate of stomach cancer in men is much higher than that in women, especially in middle-aged men, who suffer from gastric polyps, gastric ulcers, chronic atrophic gastritis and other diseases, which are likely to develop into stomach cancer if left untreated for a long time.

　　Data show that in the past five years, 400,000 new cases of stomach cancer have occurred in China every year, with the incidence rate accounting for about 42 per cent of the world's total; it is expected that by 2015, the incidence rate of stomach cancer in China will climb by 1.6 per cent per year.

　　Experts believe that the high incidence of stomach cancer among Chinese people is related to their unique dietary habits, such as Chinese people love to eat barbecued lamb kebabs, hot pots, spicy and pickled food, etc., and food with too heavy flavour will stimulate the digestive tract and cause organ pathology; the fact that the Chinese people drink a lot of alcohol is also a reason, and drinking too much white wine not only harms the liver, but also has a negative impact on the whole digestive tract.

　　In addition, the incidence of stomach cancer in recent years, and environmental pollution also has a lot to do. Polluted water and food can stimulate the digestive tract and cause damage to the stomach. In addition, pesticide residues and drug abuse can also lead to an increase in cancers of the digestive system.

　　What bad habits are most likely to cause stomach cancer

　　1、Those who often drink very hot strong tea

　　Drinking high-temperature (above 80 degrees Celsius) strong tea frequently not only burns the oesophagus easily and forms chronic ulcers in the oesophagus, but also the tannin in the tea is more likely to stimulate the injured oesophageal epithelial cells due to the deposition in the damaged area, which promotes the chronic ulcers to remain unhealed for a long period of time and leads to cancer.

　　2、Frequently stay up late

　　Cancer cells are formed by mutation in the process of normal cell fission. Night time is the most vigorous period of cell fission. If there is insufficient sleep at night and the human body's ability to resist diseases is lowered, it will be difficult to control the mutation of cells and the formation of cancer cells. People who stay up late for refreshment often smoke and drink coffee, but also easy to make more carcinogens invade the human body.

　　3、People who hold their urine and faeces

　　The risk of bladder cancer is directly proportional to the time of urine retention. Urine contains a carcinogen that can invade bladder muscle fibres and make them cancerous. There are even more harmful substances in stool, hydrogen sulphide, faecal odour and other carcinogens, which can also lead to cancer if they regularly irritate the intestinal mucosa.

　　4、Preferring to eat meat

　　Experts found that people who eat pork, beef, sheep and other animal meat as their main food every day, the proportion of people who suffer from intestinal cancer is 2.5 times higher than those who only eat a small amount of meat several times a month; the risk of pancreatic cancer also increases with the increase in the amount of meat eaten.