Bellissimo, N. et al. Effect of television viewing at mealtime on food intake after a glucose preload. Pediatric Research. Finding: "[Watching TV] while eating a meal contributes to increased energy intake by delaying normal mealtime satiation and reducing satiety signals from previously consumed foods."
Li, S. et al. The impact of media use on sleep patterns and sleep disorders among school-aged children in China. Sleep. Finding: "The presence of media in a child's bedroom and media use had a negative effect on children's sleep/wake patterns, duration of sleep, and sleep disorders."
Heins, E. et al. Bedtime, television and computer habits of primary school children in Germany. Gesundheitswesen. Finding: Owning a mobile phone, watching television more than 3 hours a day, or playing computer games more than 3 hours a day were associated with 9-10 year olds going to bed after 9 pm.
Delva, J. et al. Health-related behaviors and overweight: A study of Latino adolescents in the United States of America. Pan American Journal of Public Health. Finding: "For both genders, being overweight was...positively associated with the amount of television viewing."