It is not recommended to turn on the cell phone at night and put it next to the pillow, the cell phone is placed next to the pillow at night, the current cell phone has the function of Internet access, so the cell phone will continue to receive signals, there are microwaves and certain electric radiation, so it will cause, for example, neurological disorders, insomnia, dreaming, sleep unsteadiness, vegetative nervous disorders, etc., and in serious cases it will lead to the shortening of the duration of deep sleep, the prolongation of the duration of light sleep or even an increase in night dreams. The increase of night dreams, etc., are caused by certain microwave and electric radiation caused by cell phones to human brain waves. In addition, it will also cause the morning wake up very early and wake up in the morning will feel dizziness, headache, etc., long time cell phone on the pillow will also cause a certain load on the cardiovascular and a certain impact, so the night cell phone on the pillow on the body is not good and harmful.