First, the reason:
Psychologists clearly point out that environmental factors such as weather and sound have obvious influence on people's mental health. Generally speaking, high temperature, high humidity, rainy weather and some abnormal weather are not conducive to people's mental health, while low temperature environment is conducive to the formation of a better mental state. 15- 18℃ is the best temperature, which is beneficial to people's mental health. Sunny weather always brings people a good mood.
Psychologists have found through investigation that sunlight is beneficial to people's physical and mental health. For example, if autistic people live in a well-lit place, their autistic behavior will be much reduced and they will actively participate in interaction; Living in a dark corner for a long time will make people become withdrawn and depressed, accompanied by headaches, nausea and other discomfort.
Second, other factors affecting mental health.
Population density is also an important factor affecting our physical and mental health. If individuals get too close together and feel crowded, they will feel uncomfortable psychologically. In densely populated areas, in order to maintain this spiritual space and freedom, people can only use indifference to exclude others and keep others at a certain distance from themselves. Experts have confirmed through investigation and study that the higher the population density, the higher the incidence of mental disorders and physical diseases.
2. Noise is also an important environmental factor closely related to people's physical and mental health. The so-called noise is an unpleasant irregular sound exceeding 85 decibels. On the contrary, even the sound below 85 decibels, if irregular, will cause noise to some people. Some people like to raise fruit, and its paroxysmal cry is noise to some people, but it is like a lullaby to others. Noise can cause physical illness and affect people's mood. It will make people fidgety, in a bad mood, lose concentration, reduce work efficiency, affect rest and cause sleep disorders. Many writers like to write far away from the city, just to avoid the dense noise of the city.
Conclusion: It can be seen that a good environment is a necessary condition for people to obtain physical and mental health.