In addition, cyan has the effect of absorbing oxygen to human body. As a sedative for motor nerves, it can relax the human body, relieve nightmares and promote hypnosis. Older people usually feel lighter, so it is more favorable to choose cyan for bedroom decoration and the effect is better. As for teenagers' bedrooms, considering that they are lively and easy to fall asleep, the walls can be neutral or warm, such as orange and yellow.