CHICAGO -- Kids and teens who spend more time on screens and get less sleep may have higher risks for future heart and metabolic problems such as high blood pressure, high blood sugar, unhealthy cholesterol levels and excess belly fat, according to a new study published in the Journal of the American Heart Association.

The study collected data on self-reported or parent-reported screen time and sleep hours for over 1,000 kids and teenagers living in Denmark. Screen time included either watching TV or using electronic devices. Cardiometabolic health data measured cholesterol levels, blood sugar levels, waist measurements, blood pressure and insulin resistance.

Each additional hour of screen time was associated with higher cardiometabolic risk for both kids and teenagers. Teenagers with e

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