(1) Develop good personal hygiene habits: no smoking, persistent physical exercise, no contact, moderate drinking, sleeping for seven to eight hours every day, keeping a proper weight, eating breakfast on time and not eating more snacks. ⑵ Appropriate balanced nutrition: The so-called balanced diet refers to the proper proportional relationship between nutrients in each meal or meal. A balanced diet suitable for the elderly should pay attention to the following points: the intake of protein should be slightly higher than that of young adults, and a certain amount of high-quality animal protein should be guaranteed as much as possible every day; Properly control calories to avoid obesity and prevent the occurrence of senile diseases; Pay attention to the intake of fresh vegetables and fruits. Ensure adequate vitamins, inorganic salts and plant fibers; Diet should be light, regular and quantitative to avoid overeating. ⑶ Master the dietary principles: First, reduce the total food intake and reduce the calories released by food intake, and it is appropriate to use 1200 ~ 1400 calories. Secondly, it is advisable to choose foods that are easy to digest. The diet of the elderly over 65 is similar to that of children aged five or six. Third, eat less and eat more. Don't eat too much when eating, it is best to be half full or 80% full. ?