If you think your preteen’s smartphone is harming their health, you may be right.
A new study of more than 10,000 U.S. adolescents has found that kids who own a smartphone before the age of 12 are at an increased risk of depression, obesity and insufficient sleep compared to their peers who don’t have smartphones — contradicting a smaller Stanford Medicine study from 2022 that found no connection between the age kids acquired their first cell phone and sleep patterns or depression.