Briefly describe the relationship between four concepts: human, environment, health and nursing.

People, health, environment, nursing. Difference and connection: The four basic concepts of human, health, environment and nursing are closely related. Without any of them, nursing can not develop into a discipline, nor can it enter the field of professional time. The core of the four basic concepts is human, who is the service object of nursing, and thermal health is the core of nursing practice. Health is a state in which the internal and external environment is balanced and multi-level needs are met. Human health and environment are closely related, and they are interdependent, interactive and unified. A good environment promotes human health; Bad environment is harmful to people's health. Therefore, people constantly adapt to the environment through their own coping mechanisms, and constantly improve and change the living environment by conquering and transforming nature. Nurses act between people and the environment, and their task is to create a good environment and help nursing objects adapt to the environment, so as to achieve the best health.