The most common cause of dizziness from prolonged cell phone playing is neck strain and cervical spondylosis. Long time playing with cell phone can lead to soft tissue strain such as neck muscles, ligaments and fascia, and aseptic inflammation, which can stimulate the nerves and blood vessels in the neck and lead to dizziness due to insufficient blood supply to the brain. In addition, when playing cell phones for a long time, the small joints of the neck may become disordered or misaligned, cervical spine osteophytes, spinal stenosis, herniated discs, etc., which can also compress the nerves and blood vessels in the neck and cause dizziness due to insufficient blood supply to the brain. Therefore, when dizziness occurs, you should immediately stop playing with your cell phone, rest your neck, avoid straining, and if necessary, see an orthopedic surgeon for the appropriate examination and necessary treatment.