ABSTRACT Excessive use of video games may be associated with sleep deprivation, resulting in poor job performance and atypical mood disorders. Three active duty service members in the U.S. Marine Corps were offered mental health evaluation for sleep disturbance and symptoms of blunted affect, low mood, poor concentration, inability to focus, irritability, and drowsiness. All … Continue reading “Excessive Video Game Use, Sleep Deprivation, and Poor Working Performance Among U.S. Marines Treated in a Military Mental Health Clinic: A Case Study”