Long time lying down to play cell phone due to the hands for a long time to maintain a bad posture, may become “claw-shaped hands”, affecting the flexibility of the hands. May also have an impact on the health of the eyes, reduce the quality of sleep. Long time lying down to play with the phone, because the hand has been kept to hold the phone posture, bilateral elbow joint bending angle is large, so that the ulnar nerve is stretched for a long time, easy to produce sterile inflammation. The ulnar nerve is responsible for the movement of the little finger and ring finger of the hand, and the inflammation will cause the ulnar side of the back of the hand, that is, the side near the little thumb, as well as the small fissure and little finger to feel numb or tingling. If this happens for a long time, there may be weakness of the little finger against the palm, as well as inflexibility of the closing and spreading movements of the fingers, and in severe cases, the deformity of the “claw-shaped hand” may become apparent. In addition to the “claw-shaped hands”, long time lying down to play cell phones will also have an impact on the eyes, sleep state, such as visual fatigue, blurred vision, insomnia, dreamy, etc.. Therefore, in order to prevent the above-mentioned hazards, it is recommended not to keep the same position for a long time to play cell phones, and try not to use electronic products before going to bed, the daily can be through hand massage, hot compresses, grip ability training, etc., to help relieve hand muscle and nerve tension. If you have formed a “claw-shaped hand”, you should actively seek medical advice to take acupuncture, massage and other physical therapy treatment, and if necessary, surgery to correct the local deformity and restore the normal function of the hand.