The Chosun Ilbo on MSN

Smartphone use before 13 linked to sleep issues, obesity risks

Children who receive smartphones before turning 13 years old face over a 60% higher risk of poor sleep quality and over a 40% ...
The Chosun Ilbo on MSN

Smartphones before 13 linked to 60% higher sleep, 40% obesity risks

A study has found that children who own smartphones before turning 13 face a more than 60% higher risk of poor sleep quality ...