According to the sixth national census, the average life expectancy in Wanning is as high as 79.85 years, which is more than five years higher than the national average. People over 80 years old 19564 people, people over 100 years old1/kloc-0 people, and the data level of population longevity is among the best in China.

The annual average temperature in Wanning is 24.8℃, the forest coverage rate in the city reaches 67.5%, the ambient air quality reaches the national first-class standard, and the drinking water reaches the national second-class standard for surface water.

The soil is mainly red soil and sandy soil, both of which are rich in trace elements necessary for human body, such as selenium, with a content of 66%. Hainan is a selenium-rich area, so the crops produced by Wanning can obviously promote human health and longevity, which has also been verified when the hair and nails of centenarians in Wanning City are tested.

Wanning's long history and culture have created a good fashion that Wanning people put filial piety first and honor their elders, as well as an optimistic, hardworking, cheerful and generous character, which is of great benefit to prolonging life and belongs to Wanning's longevity culture.

Wanning people's longevity culture also includes excellent lifestyle. In Wanning people's attitude towards life, there is not only a positive and enterprising spirit of keeping pace with the times, but also a comfortable and contented mentality, which is relaxed to a certain extent. So the family here is harmonious, the neighborhood is friendly, the society is stable, and the happiness index is relatively high.