Many cancers do not occur in a short period of time, but are closely related to daily habits. Especially for some "savings" that should not have been saved, seemingly good habits may be the "culprits" that lead to cancer. Habit 1: If the food gets a little bad, continue eating. If a small piece of fruit rots, if there is a little mold on the bread, or if a small piece of sugarcane goes bad... Some people believe that as long as the bad part is cut off completely, the good part can still be eaten. A physician from Zhongshan Hospital affiliated with Fudan University stated that food mold is caused by the growth and reproduction of mold. The visible mold spots on moldy fruits are just the tip of the iceberg, as mold and toxins have already spread inside. Therefore, even if the moldy part is removed, the remaining part should not be consumed. Eating moldy food may cause health problems such as intestinal discomfort, allergic reactions, and respiratory diseases. The toxic metabolites produced during the growth of fungi, such as fungal toxins, can cause health hazards such as poisoning, immunodeficiency, carcinogenesis, and teratogenicity. Health advice: Try to buy fresh food as much as possible, buy less at a time, and buy after finishing. Fruits that have been slightly damaged by collisions can be eaten, but fruits that have already become moldy are safer to throw away. Try to avoid buying pre cut and pre packaged vegetables and fruits. Habit 2: Afraid of waste, often eating leftovers. Many people are very frugal with food, and they often put uneaten meals in the refrigerator and continue to eat them the next and third day. It's okay to have a meal occasionally, but if you eat leftovers for a long time, it may bring harm. Zhou Zhiwei, director of the Department of Gastroenterology at Sun Yat sen University's Cancer Prevention and Treatment Center, stated that unhealthy eating habits include frequently consuming high salt, pickled foods, and leftover food; Leftover food and vegetables are the driving force behind stomach cancer. Health advice: Instead of feeling heartbroken when faced with leftovers, it's better to remind yourself and your family to cook in moderation and avoid leftovers. Choose fresh and healthy food. The World Health Organization recommends that cooked food should not be stored at room temperature for more than two hours, should not be stored in the refrigerator for more than three days, and leftover food should not be heated more than once. Habit 3: Long term non replacement of wooden chopsticks. It is common for many families to use a pair of chopsticks for several years. Many people believe that if the chopsticks are not broken, there is no need to replace them. Han Hongwei, a researcher at the Risk Communication Department of the National Food Safety Risk Assessment Center, said that many households use bamboo or wooden chopsticks. Bamboo and wooden products are the two favorite living environments for mold stains, and as long as the environment is not dry and the humidity content of the substance itself reaches a certain level, it can be generated in just one day. Moldy chopsticks may contain aflatoxin, a carcinogen that can easily induce liver cancer. Health advice: Regularly used bamboo and wooden chopsticks should be replaced every six months. Wash the chopsticks with the small head facing up and the large head facing down, let them dry to avoid mold. Chopsticks placed horizontally are not conducive to drainage and are more prone to mold growth. Chopsticks are best used by dedicated personnel to prevent the spread of bacteria among family members. How to choose suitable chopsticks? There are various types of chopsticks on supermarket containers. How can we choose to find suitable chopsticks? Firstly, do not purchase chopsticks coated with colored paint, as the heavy metal lead and organic solvent benzene in the paint are carcinogenic. Moreover, with wear and tear during use, once the paint on the chopsticks falls off and enters the human body with food, it can seriously endanger human health. Especially some families like to use brightly colored painted chopsticks for their children. Children have a low tolerance for lead, benzene, and other substances, so it is important to avoid using them. Secondly, it is not recommended to purchase disposable chopsticks. Most disposable chopsticks are bleached with sulfur, and frequent use can affect human health and does not meet environmental protection requirements. Finally, it is recommended to purchase wooden chopsticks, stainless steel chopsticks, and ceramic chopsticks. When purchasing wooden chopsticks, it is recommended to buy natural wood and natural color chopsticks. Stainless steel chopsticks should be made of food grade materials, such as 304 stainless steel. It is best to choose pure white and non patterned ceramic chopsticks. Habit 4: Eating edible oil for too long. Many people believe that edible oil can be consumed as long as it is within its shelf life, but this is not the case. Tests have shown that once edible oil is opened, 3 months is the critical point for safe use. After oil oxidation and rancidity, it often contains aflatoxin contamination, which can produce a "halal flavor". When heated, it can be smoky and choking, which may induce liver cancer. Health advice: If the family has a small population, it is best to buy small barrels of oil. Large barrels of oil must be divided into oil pots, and sandblasting or opaque oil pots are safer choices. It is best not to place oil bottles on windowsills or other places where direct sunlight can penetrate, as it is more prone to oxidation. Habit 5: Repeatedly using recycled oil to fry food will use a lot of oil. In order to avoid waste, some families will use the remaining oil to continue stir frying. Yu Wanting, from the Nutrition Department of the Third People's Hospital of Chengdu, Sichuan Province, said that the oil used in frying food looks normal, but little do they know that when the oil is heated at high temperatures, it will produce trans fatty acids and toxic oil oxidation products. When this oil is continued to be used for high-temperature cooking, carcinogens will increase sharply. Health advice: Avoid repeated high-temperature cooking with leftover oil, and recommend using low-temperature cooking. A public dietitian said that leftover oil can be used to make pasta, such as Cong you bing, Steamed rolls, Dim sum, etc. If there are solid impurities in the oil, filter it first. Leftover oil can also be used to make soup, especially vegetable soup, which can be added with a little bit. When blanching vegetables, you can add a few drops of leftover oil to make the vegetables bright in color and enhance their taste. Habit 6: Not willing to use a range hood. Some people have a habit of stir frying on high heat when cooking, and in order to save electricity, they are reluctant to use a range hood, which can cause them to inhale a large amount of oil fumes. Tao Xincao, chief physician of the Department of Respiratory and Critical Care Medicine of China-Japan Friendship Hospital, said that the impact of kitchen fume on people, since childhood, has a strong irritation to the nose, eyes, throat mucosa, which can cause rhinitis, pharyngitis, tracheitis and other respiratory diseases. Long term inhalation of oil fume can lead to chronic obstructive pulmonary disease. In addition, kitchen fumes are also one of the risk factors for lung cancer. Health advice: Before starting the fire, turn on the range hood. Every time the gas stove is ignited or turned off, there may be some gas leakage. At the same time, gas combustion can also produce exhaust gas, which is harmful to health. After stir frying, turn on the range hood for a few more minutes to completely exhaust the fumes. When cooking, it is not enough to only turn on the range hood. It is best to open the kitchen window at the same time. Firstly, it can assist in the discharge of oil fumes, and secondly, fresh air helps to fully burn the gas. (New Society)