Playing mobile phones for a long time may cause problems in the cervical spine. Nowadays, the harm of mobile phones is plaguing our whole country. Adults, children and the elderly can't do without mobile phones. Among them, mobile phones are the most harmful to eyes and cervical vertebrae, while cervical vertebrae are harmful to all organs of the body, such as insufficient blood supply to the brain, cardiac oppression and numbness of hands and feet. Wait, so don't lie down and play with your mobile phone. Call on the whole society to pay attention to the harm of mobile phones.