Does toddler behavior predict teenage fitness? A longitudinal study shows that active play and limited screen time at age 2.5 ...

Children who have smartphones by age 12 are at higher risk of lack of sleep, obesity and depression, according to a new study published Monday in the journal Pediatrics. What's more, researchers found ...

In early adolescence, smartphone ownership is associated with depression, obesity, and insufficient sleep, according to a study published online Dec. 1 in Pediatrics. Ran Barzilay, M.D., Ph.D., from ...

Researchers found higher rates of depression, poor sleep and obesity among tweens who had early access to a cellphone. By Catherine Pearson What is the “right” age to get your child a smartphone? It’s ...