This document provides information about internet addiction, including its definition, characteristics, causes, symptoms, physical symptoms, diagnosis, and remedial measures. Internet addiction is defined as a behavioral addiction where a person becomes dependent on internet or online devices to cope with life stresses. Some key causes include underlying mental health conditions, loneliness, genetics, and environmental factors. Symptoms affect people both psychologically through depression, anxiety, and isolation, as well as physically through issues like back pain, headaches, and insomnia. Diagnosis involves tests like Young's Internet Addiction Test and treatment focuses on setting limits on device use and increasing offline community engagement and meditation.