Screen Time for Children: What the Research Actually Says

Current guidelines

Under 18 months: Avoid screens except video calls (Facetime with grandparents is valuable, passive TV is not).

18–24 months: High-quality programming only, with a parent watching together and talking about what they see.

2–5 years: Limit to 1 hour per day of high-quality content. Co-view when possible.

6 and older: Consistent limits on time and type. Ensure screens don't take the place of sleep, physical activity, or face-to-face interaction.

What the research shows

What's harmful

• Displacement: Screen time that replaces sleep, reading, outdoor play, and family interaction is associated with poorer outcomes
• Background TV: Even when not "watched," background television disrupts parent-child interaction and reduces the quality and quantity of parental speech
• Social media for teens: Associated with increased anxiety and depression in adolescent girls particularly

What's neutral or positive

• Video calls: Social interaction via video (reading with a grandparent, talking to a relative) shows similar benefits to in-person interaction
• Educational programming: High-quality shows like Sesame Street have documented positive effects on vocabulary and school readiness when watched with adult engagement
• Learning apps: Interactive apps where children respond and receive feedback differ meaningfully from passive video

What matters most

The content, context, and co-viewing matter more than raw minutes. A child watching 30 minutes of high-quality programming with a parent who discusses it is having a very different experience from 2 hours of YouTube with no adult.

Practical tips

1. Create screen-free zones: bedrooms and mealtimes
2. No screens 1 hour before bed: blue light disrupts melatonin
3. Watch together: use content as a jumping-off point for conversation
4. Model the behaviour you want: children imitate parental phone use
5. Offer alternatives first: outdoor play, reading, building, then screens as a reward
6. Use parental controls: age-appropriate content and time limits

The bigger picture

Don't let perfect be the enemy of good. A toddler who watches 90 minutes on a difficult day when a parent is ill is fine. Chronic, unsupervised, displacement-level screen use is the concern.

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The Childhood Journal provides general evidence-based information. Always consult your paediatrician for concerns specific to your child.