HUBUNGAN PENGGUNAAN GADGET DENGAN KUALITAS TIDUR PADA REMAJA DAN MAHASISWA

Introduction: The era of globalization in the field of telecommunications is characterized by the rapid growth of communication media. Developments in the field of communication such as the use of gadgets. Gadgets are used to communicate, play games and find information, but also as a need for work to study needs anywhere. Excessive use leads to poor health problems such as dry eyes, neck pain,…