People who live long are not lazy. Hua Tuo, a famous doctor in the Three Kingdoms, put forward a slogan called "The human body should work". China's traditional health theory holds that "those who work hard for many years will die." In other words, labor can promote the movement of life and prolong life; On the contrary, being too comfortable, doing nothing all day and wandering around will be bad for your health. Countless facts at home and abroad tell us that labor will not last long, but exercise can prolong life. Persisting in labor and being busy properly are indispensable factors for prolonging life. All the residents in the hometown of longevity are practicing the principle of longevity that is the most difficult for modern people to implement: working all their lives. There is a "longevity village" in the mountainous area of Sardinia, Italy, where the probability of residents living to 100 is three times that of other parts of the world. Many residents are elderly, and the average life expectancy of men and women is almost the same. Kosu, a 94-year-old man, said that the secret of his longevity is "to be active, always work, eat well and be optimistic". From 12 to 70 years old, Kosu began to work in the fields at dawn every day, with little rest. Today, a 94-year-old man can still herd sheep in a hurry in the mountains every day. Old people in the Caucasus, the hometown of longevity in the world, still take part in labor day after day, year after year, even when they reach the age of 100, and their physical fitness is strengthened all the year round. Of course, the elderly are engaged in light manual labor, such as doing some work in orchards or vegetable gardens and raising chickens. When I get old, I feel powerless, but I try my best to do everything. In Bill Kabamba village, the hometown of longevity in the world, people work in the fields all day, with strong limbs and healthy hearts. Here, people in their sixties and seventies are still a strong labor force, it is common for people in their eighties and nineties to work in the fields, and it is considered normal for people in their sixties and seventies to take care of themselves. Scientists call this village that likes to work an "immune island". It is labor that makes them "immune" to cardiovascular and cerebrovascular diseases, because local people rarely get cardiovascular and cerebrovascular diseases. When asked about the reason of longevity, an old lady named Lucilla, age 109, said, "I have been working all my life, and I will continue to work when I am old." Researchers in China investigated more than 1000 long-lived elderly people over 90 years old, and found that 95% of these elderly people are manual workers and 5% are mental workers. Most of them still take part in labor at the age of 90 and 1000. From a medical point of view, people who have participated in manual labor for a long time always keep their hands and feet, which consciously exercises their bodies and strengthens their physique; It is easy to get hungry at work, increase appetite, eat naturally and sleep soundly; Labor promotes digestive function and cardiovascular function, and the myocardial beating is strong and the blood flow is smooth, thus lowering blood pressure and blood lipid and vigorous metabolism; A person's yang is sufficient and his immune function is enhanced. Exogenous pathogens are not easy to attack the human body, which is good for both body and mind, and plays a role in health care, health preservation and disease prevention. Long-term participation in manual labor can delay the process of cardiovascular and cerebrovascular decline 10 ~ 20 years. Someone said it well: "People are animals, so we must move more, and more movement can last forever." In life, we can see that people who are diligent, positive and love life often patronize health and longevity. There is an English proverb: "No one who lives long is a lazy man." Now, although some people really want to live a long and healthy life, they are infected with the word "lazy". I am lazy to get up, exercise, do housework, participate in social activities and study. I am content to sit on the sofa all day watching TV and reading newspapers, and even lie in bed whenever I have time. In fact, once a person is infected with the word "lazy", many chronic diseases will attack him, and of course it is difficult to live a long and healthy life.