- Something Grim Is Happening to Kids Who Got Cell Phones Early Futurism
- A Smartphone Before Age 12 Could Carry Health Risks, Study Says The New York Times
- What age is too young for a cellphone? Study links devices to obesity, depression The Hill
- Smartphone Ownership, Age of Smartphone Acquisition, and Health Outcomes in Early Adolescence AAP
- Children who have smartphones by age 12 are at increased risk of health problems, new study finds CBS News