Researchers believe exposure to blue light emitted from the device's screen limits the amount of melatonin produced by the body.
Ndị nchọpụta kweere na ikpughe na ìhè acha anụnụ anụnụ nke sitere na ihuenyo ngwaọrụ na-egbochi ọtụtụ melatonin nke ahụ na-emepụta.