Health Desk: Screens Hijacking Kids’ Hearts?
In today’s digital era, children are glued to smartphones, online classes, and video games for hours on end. A recent study warns that this habit not only hampers focus and mental well-being but also endangers long-term heart health. Published in the Journal of the American Heart Association, the research highlights how each extra hour of recreational screen time elevates cardiometabolic risks in youth.
Study Insights from Denmark
Researchers tracked over 1,000 mother-child pairs in Denmark, monitoring screen time, sleep patterns, and physical activity. They assessed cardiometabolic risk using five key markers: waist circumference, blood pressure, cholesterol levels, triglycerides, and blood glucose.
The findings reveal a clear link: for every additional hour of leisure screen viewing, risk scores rise by 0.08 points in children aged 6 to 10, and 0.13 points in 18-year-olds. This association strengthens among those with shorter or delayed sleep.
Sleep as a Buffer
Adequate sleep offsets about 12% of the negative effects from screen exposure, acting as a partial safeguard. Children getting less rest or bedtime delays face amplified risks, underscoring the interplay between digital habits and rest.
Global Relevance and Advice
Though conducted in Denmark, experts say the results apply worldwide, including India where online learning has spiked smartphone use since 2020. Rising childhood obesity and insulin resistance make this a timely alert for parents.
To protect heart health, families should limit screen time and prioritize quality sleep alongside physical activity. Simple adjustments can yield lasting benefits for young hearts.