11 Aug 2025 • A study of 1,000 participants found that each extra hour of discretionary screen time raised cardiometabolic risk in children (β=0.08) and adolescents (β=0.13), with effects stronger in those with shorter sleep.

In adolescents, screen time also predicted higher long-term CVD risk (β=0.07).

Metabolomic profiling revealed a distinct childhood metabolic signature linked to screen time that persisted into adolescence.

Findings stress the combined impact of high screen use and inadequate sleep as early-life drivers of future cardiometabolic and cardiovascular disease.

Source: AHA|ASA Journals | Read Full Story