In ancient times, people's life expectancy was not long because of the backwardness of living standards and medical standards. There is a saying that 70 years old is rare, which means that not many people can live to 70 years old. Therefore, the average life expectancy at that time was very short. Now 70 years old is only an average life expectancy, and the number of centenarians is not small. According to a statistic released by the National Health and Family Planning Commission, the average life expectancy of Chinese people has reached over 77 years old. Compared with before the founding of New China, life expectancy has doubled. The increase of life expectancy benefits from the development of national living standard and medical service level. In daily life, pay attention to a healthy diet, exercise properly, maintain a good attitude and preserve health, and ensure good health.

First, pay attention to a healthy diet. The so-called disease enters from the mouth, which makes sense. If a person wants to be healthy, he must first ensure a healthy diet. Try to eat less, or don't eat some unhealthy food, such as drinks, junk food and so on. Eat three meals a day, regularly and quantitatively, eat more green vegetables and fresh fruits, and ensure a healthy diet to ensure good health.

Second, exercise properly. Exercise can strengthen people's physique. Proper exercise can ensure health. Therefore, you can exercise at a fixed time every day. Choose the exercise that suits you, and at the same time pay attention to the fact that the amount of exercise should not be too large, which may cause joint damage. For middle-aged and elderly people, choosing moderate exercise is more conducive to their health.

Third, keep a good attitude. A strong body and a good attitude can ensure good health. A person who is depressed all day is definitely not as healthy as a cheerful and optimistic person. Therefore, keeping a good attitude, not being too sad, being optimistic about everything and keeping yourself calm is also a major method of health preservation. The so-called health care first raises the heart, which makes sense. Only when you are in a good mood can you be in better health.