Excessive screen time for children can harm not only their eyes but also their cardiovascular health, according to the American Heart Association. Recent research suggests that prolonged use of phones, game consoles, and other electronic devices is associated with an increased risk of cardiovascular and metabolic issues in children.

The study, conducted on over 1,000 children in Denmark, revealed that screen time increases with age: an average of 2 hours/day for 6-year-olds, 3.2 hours/day for 10-year-olds, and 6.1 hours/day for 18-year-olds. For every additional hour of screen time, there was a corresponding increase in cardiovascular risk factors, with a higher impact on 18-year-olds (0.13) than 10-year-olds (0.08).
If this screen time is extended by just 3 more hours per day, the risk of cardiovascular and metabolic issues increases by 25-50% compared to peers with less screen time.

Experts highlight the negative impact of electronic devices on children’s sleep patterns, including disruptions to their body clocks and reduced melatonin production, resulting in shorter sleep durations. The study also observed metabolic lipid disorders, sodium retention leading to insulin resistance, and increased sympathetic nervous system activity, which, over time, can cause endocrine disorders, increased appetite, and weight gain.
While screen time is ubiquitous, parents can mitigate these risks by setting boundaries and being role models for their children. This includes establishing rules for when and how long devices can be used, especially during mealtimes. Prioritizing sleep is crucial, and this can be achieved by implementing a device curfew well before bedtime, thereby improving sleep quality and reducing health risks.
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