It is very important to develop healthy living habits and establish the right concept of health care. From the era of shortage economy to the present, the environment around us has changed a lot, and people should also change with it. Let’s take eating, now we can buy everything, but we don’t know how to eat. Some people say “what I want to eat is what my body needs”. Try to think, is it for the sensation of the tongue to eat, or for the health of the body to eat? The former will inevitably lead to partiality, picky eating and unbalanced nutritional intake. For example, the previous concept of vegetable oil, the Chinese have a habit of frying vegetables with less oil does not smell good. Many people put a lot of oil in stir-fry, and some hotels have dishes soaked in oil. In fact, the heat energy of vegetable oil and animal oil is exactly the same, every two or two are 900 kcal heat. So many people are obese and overweight because they eat too much oil. The Chinese Nutrition Society recommends 25 grams of vegetable oil per person per day, which is half a tael, but we now have an average of 44 grams per person nationwide and 83 grams per person in Beijing. In Beijing, for example, it takes an hour of jogging and an hour and a half of brisk walking to consume the extra oil eaten every day. People over 40 years old should adhere to the principle of “ten tennis balls” in their daily eating habits: 1, no more than one tennis ball of meat 2, the equivalent of two tennis balls of staple foods 3, to ensure that three tennis balls of fruit 4, no less than four tennis balls of vegetarian dishes