There are no authoritative studies to confirm what the normal age of old age and death is. However, the average life expectancy in China has reached 75 years, and it is considered that the mortality rate will increase with age. Life expectancy refers to the time from birth through the development of growth and maturity gradually decline to death, usually age as a measure of life expectancy, each person’s life expectancy is a certain difference, considering the genetic factors, environmental factors, acquired dietary factors, psychological factors, disease factors and so on have a certain relationship, the life expectancy can reflect a country’s economic and cultural development. The average life expectancy of Chinese people is about 74 years for men and 77 years for women, with an average life expectancy of 75 years. With the improvement of living conditions and medical standards, the average life expectancy is also increasing, so the proportion of elderly people is also increasing, due to the aging rate of the human organism aggravated, natural death may occur. Natural death is relatively less painful, but the proportion is also relatively small, if necessary, consult the geriatric department of the regular hospital.