Tumor is a kind of lifestyle disease, tumor patients should start from changing bad lifestyle. 1.Eating habits. First of all, long-term excessive fat, sweet and thick taste is the culprit of many tumors. Fat, sweet and thick taste products refer to foods rich in nutrients, including high calorie, high protein and high fat foods, which should be consumed in moderation. The second is cold and cold products and too spicy, fried, smoked food or eating too fast and love to eat hot easy to cause digestive tract tumors, we should pay attention to. 2. Stop smoking and drinking. 3. Form a scientific lifestyle. To prevent cancer and promote health, it is necessary to have a regular life, pay attention to physical exercise, combine work and rest, and maintain good sleep.