The sample of the study consists of high school students who do not have mental disabilities that will prevent them from understanding and answering the questions, aged 15-18 and volunteer to participate in the study, have internet at home and have an individual device that provides internet access.

Researchers will go to the designated high schools and meet face-to-face with the responsible/guidance teachers at the school. The research will be explained to the students by going to the classrooms with the teachers, and they will be asked to fill in the consent forms of the parents and themselves. Students will be given 5 days to explain the work to their families and bring their signed consent forms. Students who bring consent forms, meet the criteria for participation in the study, and volunteer will be included in the study. Evaluation forms and questionnaires will be explained to the students included in the study by a designated researcher and they will be asked to fill them in under the supervision of the researcher. The completed evaluation form and questionnaires will be collected by a researcher in a sealed envelope.

This questionnaire consists of 20 statements. After reading each statement carefully, based upon the 5-point Likert scale. Total scores that range from 0 to 30 points are considered to reflect a normal level of Internet usage; scores of 31 to 49 indicate the presence of a mild level of Internet addiction; 50 to 79 reflect the presence of a moderate level; and scores of 80 to 100 indicate a severe dependence upon the Internet

It is a scale that questions the level of physiological, psychological, emotional and social awareness of the individual, the differences between sleep disorder, being sick and not being sick, bodily and mental reactions in specific situations related to body awareness, and the level of estimation.

The frequency and severity of the discomfort they have experienced are presented to the participants as options, and they are expected to answer the option appropriate for their situation according to the last week.