Smart phones have been very popular. Drugs cause users to use the phone more than four hours per day, the risk of cervical degenerative disease increased to 12.1% .
Smartphones have become extremely popular. Drug users using the telephone more than 4 hours per day, until the risk increased depreciation rongkraduk pillow to 12.1% .
smartphone is very popular with the drug using the Phone more than 4 hours a day until it is at risk of diseases cushion the bone deterioration, Up 12.1 %