Cell phone radiation does not cause cancer. Cell phone mainly transmits signals through electromagnetic waves, which may produce electromagnetic radiation. Electromagnetic radiation mainly includes ionizing radiation and non-ionizing radiation, among which cell phone radiation and most common electronic products such as TV, computer and microwave oven are non-ionizing radiation. Non-ionizing radiation is less intense and does not produce ionization, nor does it damage DNA, and generally does not cause cancer. Although cell phone radiation does not cause cancer, try not to put the cell phone on the pillow when you sleep, and it is recommended to put the cell phone far away from your hand so as not to look up the cell phone and play with it at any time before going to bed. Playing cell phones for a long time before going to bed may be addictive and over-excited nerves, leading to insomnia or poor sleep quality, which may affect the mental state of the next day and be detrimental to the body. Although the electromagnetic radiation of cell phones is very small, but still pay attention to the careful use, especially pregnant women, it is recommended that pregnant women use cell phones appropriately. Ordinary people are also not recommended to play cell phones overnight, usually the use of cell phones should not be too long, because long-term look at the electronic screen, not only will lead to blurred vision, vision loss, and may appear some eye diseases, such as glaucoma. In addition, prolonged playing with cell phones may be prone to muscle fatigue, joint damage, etc., resulting in tenosynovitis, cervical spondylosis, etc.