Television and screens often serve as "electronic babysititers" for busy families. Research suggests that the timing, content, and context of a preschool child's screen exposure can have profound impacts on their behavioral, dietary, and long-term social development. Understanding this is essential for parents and caregivers to foster healthy developmental trajectories.
Behavioral Regulation and the Protective Power of Culture
One of the primary concerns regarding early television exposure is its link to dysregulation, which is the inability to monitor and manage emotions and behaviors. Research involving toddlers across 14 different countries has found that higher levels of TV viewing are consistently associated with difficulties in attention and self-soothing. Frequent exposure during this foundational period of can disrupt the development of executive functions such as working memory and inhibition.
Interestingly, the impact of television is not universal and can be heavily influenced by family practices and cultural values. For example, studies found that time spent watching TV was less strongly associated with dysregulation in Spanish toddlers compared to children from other cultures. This may be due to the cultural concept of familismo, where TV viewing is treated as a shared family activity rather than a solitary distraction. When families engage with content together, it can act as a protective factor, helping children contextualize what they see and promoting more positive developmental outcomes.
The Hidden Link Between Screens and Poor Nutrition
The impact of television extends beyond behavior into a child’s physical health, particularly their dietary habits. A study of two-year-olds found a strong association between daily TV time and the consumption of sugar-sweetened beverages, fast food, and junk food. Conversely, toddlers who watched less TV were more likely to consume fruits and vegetables.
Perhaps the most striking finding is the specific risk of mealtime screen use. Toddlers whose families "usually" had the TV on during meals were more likely to consume sugary drinks and junk food compared to those whose TVs were off. Experts suggest that watching TV while eating can blunt internal satiety or hunger cues, leading children to consume high calorie, nutrient-poor foods. Furthermore, children are often exposed to targeted advertisements for unhealthy snacks and beverages..
TV Viewing, Cognition and Language
While many parents believe that "educational" programming is "good for the child's brain," the research presents a more complex picture. Longitudinal studies examining infants from birth to age two found that while TV viewing initially seemed to correlate with lower language and visual motor skills at age three, these associations often became null after adjusting for family characteristics.
Factors such as maternal education, household income, and the quality of the home environment are much stronger predictors of a child’s cognitive development than the amount of TV watched. It is important to note, however, that researchers also found no evidence of cognitive benefit from watching TV during the first two years of life. This supports the American Academy of Pediatrics (AAP) recommendation to avoid digital media for children under 18 to 24 months, except for video chatting.
Violent Content and Aggression
The most concerning findings involve the long-term risks associated with the content children view during their preschool years. A study tracking children for over a decade found that exposure to violent television content at ages 3.5 and 4.5 predicted proactive aggression, physical aggression, and antisocial behavior in boys by the age of 15.
Proactive aggression—such as threatening or hitting others to get what one wants—and involvement in gang fights were significantly linked to early violent televiewing. Experts believe this occurs through social modeling and desensitization; when young children observe characters being rewarded for aggression, they may begin to view violence as an acceptable way to resolve conflicts. Because they often identify more strongly with the predominantly male characters in violent media, boys are more vulnerable to these long-term behavioral risks than girls.
Key Recommendations for Caregivers
The research provides a clear roadmap for parents looking to minimize the negative impacts of screens on their children's development:
- Adhere to Time Limits: For children aged two to five, limit screen time to one hour or less per day of high-quality programming.
- Establish "Screen-Free" Zones: Keep the TV off during mealtimes to encourage healthy eating habits and family interaction.
- Prioritize Shared Viewing: Rather than using the TV as a babysitter, watch with your child to help them understand the content and apply it to real-world experiences.
- Vet Content Carefully: Avoid exposure to violent or fast-paced content during the preschool years to protect against future aggressive tendencies.
By focusing on the quantity and quality of media exposure, caregivers can ensure that technology serves as a tool for engagement rather than a barrier to healthy development.
References:
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Brown K, Desmarais E, Gartstein M. Considering the impacts of television exposure on toddlers' dysregulation: Does culture matter? [Internet]. Child and Family Blog. 2023 May [cited 2026 Jun 12]. Available from: https://childandfamilyblog.com/considering-the-impacts-of-television-exposure-on-toddlers-dysregulation-does-culture-matter/.
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Lutz MR, Orr CJ, Yin HS, Heerman WJ, Flower KB, Sanders LM, et al. TV Time, Especially During Meals, is Associated with Less Healthy Dietary Practices in Toddlers. Acad Pediatr. 2024 Jul;24(5):741-747. doi: 10.1016/j.acap.2023.09.019.
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Schmidt ME, Rich M, Rifas-Shiman SL, Oken E, Taveras EM. Television Viewing in Infancy and Child Cognition at 3 Years of Age in a US Cohort. Pediatrics. 2009 Mar;123(3):e370-e375. doi: 10.1542/peds.2008-3221.
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Pagani LS, Gilker Beauchamp A, Kosak LA, Harandian K, Longobardi C, Dubow E. Prospective Associations Between Preschool Exposure to Violent Televiewing and Externalizing Behavior in Middle Adolescent Boys and Girls. Int J Environ Res Public Health. 2025 Jan 20;22(1):129. doi: 10.3390/ijerph22010129.
