In what areas does the external environment affect the human body?

Any human activity occurs under the conditions of constant exposure to the external environment. This effect is divided into physical, chemical, biological, social and mental. Each of these influences contains a huge number of factors that act directly on the human body. It can be insignificant (below the threshold of sensitivity of the organism) or, conversely, extremely strong (destructive), i.e., far exceeding this threshold. The threshold of sensitivity is the minimum impact that causes a response from the body.

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