Environment is the sum total of what is around something or someone. It includes living things and natural forces. The environment of living things provides conditions for development and growth, as well as of danger and damage. Living things do not simply exist in their environment. They constantly interact with it. Organisms change in response to conditions in their environment. The environment consists of the interactions among plants, animals, soil, water, temperature, light, and other living and non-living things.The word environment is used to talk about many things. People in different fields of knowledge (like history, geography or biology) use the word differently. An electromagnetic environment is the various radiowaves that equipment such as radio and radar can meet. Galactic environment refers to conditions between the stars.
In psycology and medicine a person's environment is the people, physical things, places, and events that the person lives with. The environment affects the growth and development of the person. It affects the person's behavior. It affects the person's body,mind and heart.Discussions on nature vs nuture are sometimes framed as heridity vs environment.