New research reveals excessive screentime for kids may lead to metabolic syndrome developing later in life.

A study has confirmed that those who watch more television between the ages of 5 and 15 were more likely to suffer adverse medical conditions by age 45.

Otago University preventive and social medicine researcher Bob Hancox explained the syndrome refers to a cluster of conditions, including high blood pressure, poor cholesterol and excess weight.

"We would recommend- and there's a previous guideline that has been out for a number of years- about two hours is probably a good limit to aim for."

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