The colors of nature make people feel different and cultivate people's sentiments. Different colors make people have different emotions, which leads to changes in people's mood.

Psychologists have studied color and people's mental health. Research shows that under normal circumstances, red indicates happiness and enthusiasm, which makes people feel warm and full and stimulates the emotion of love. Yellow means happiness and light, making people happy and full of joy. Green represents peace, which makes people feel stable, quiet and gentle. Blue gives people a quiet, cool and comfortable feeling, which makes people open-minded. Gray makes people feel depressed and empty. Black makes people feel solemn, depressed and sad. White gives people the feeling of elegance, purity and lightness. In short, all kinds of colors will have a certain impact on people's emotions and change people's psychological activities.

A Russian scholar's research shows that red makes people's psychological activities active, purple makes people feel depressed, roses make people feel depressed or depressed, blue can calm people down and inhibit people's overly excited emotions, and green can relieve people's nervous psychological activities. Color can make people despair, and it can also make people regain the courage to live. Of course, this effect is indirect induction. An interesting thing happened abroad: there is a black bridge where people commit suicide every year. Later, the bridge was painted blue all day, and the number of suicides decreased significantly; Then people painted the bridge pink, and there were no suicides here. From a psychological point of view, black is gloomy, which will aggravate people's pain and despair and push people to death. Sky blue and pink make people feel happy and full of hope, making people struggle out of despair and rekindle the fire of life.

Clinically, some scholars have studied color therapy and achieved good results. Wearing smoky glasses can lower the blood pressure of patients with hypertension; Red and blue can accelerate blood circulation; If the patient lives in a room with white, light blue, light green and light yellow walls painted, his mood is very stable and comfortable, which is conducive to the recovery of health.

Color has a certain influence on people's pulse and grip strength. Some foreign scholars have done experiments to prove that people's pulse is normal in the yellow room, slower in the blue room and faster in the red room. French physiologists found that under the irradiation of red light, people's grip strength doubled than usual, and under the irradiation of orange light, the grip strength of hands doubled than usual.

It can be seen that color can not only affect people's mood, but also affect people's health.