Its purpose is to spread health care knowledge through education, urge individuals and society to adopt positive health behaviors and improve people's health level. Its significance is as follows:

1. Prevention of diseases: Health education can provide knowledge about disease prevention and teach people how to identify the risk factors of diseases and take corresponding preventive measures, thus reducing the risk of diseases.

2. Advocate a healthy lifestyle: Health education can teach people to develop a healthy lifestyle, including a balanced diet, moderate exercise and adequate sleep, thus improving their physical condition and quality of life.

3. Enhance self-care awareness: Health education can improve people's self-care awareness and make them actively participate in health management and self-monitoring, so as to find and control potential health problems in advance.

4. Promote social health: Health education can cultivate people's sense of responsibility and concern for health, and jointly promote the improvement of the overall health level of society through the change of personal behavior and the improvement of social environment.