WHO issues screen time and sleep guidelines for children

The World Health Organization (WHO) recommends minimizing sedentary screen time for young children to support motor, cognitive, and emotional development. For children under two years old, the organization advises avoiding sedentary screen activities entirely. Between the ages of two and four, screen time should be limited to a maximum of one hour per day, integrated into a routine that prioritizes movement and sufficient sleep.

For infants under one year, the WHO emphasizes the importance of movement through floor play and caregiver interaction, suggesting at least 30 minutes of tummy time daily while awake. Additionally, caregivers are advised not to keep infants in strollers, car seats, or baby carriers for more than one continuous hour at a time.

Beyond early childhood, technology use affects biological rhythms in adults. Exposure to screens before sleep can disrupt circadian rhythms by interfering with the brain's ability to regulate melatonin. Because the brain relies on light detection to distinguish day from night, the light emitted by devices can signal the body to remain active rather than preparing for rest, impacting physical and mental health.