Study reports smartphones linked to obesity, depression in preteens: What age is too young for a cellphone?

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(NEXSTAR) – Parents across the country are stocking up on holiday gifts, but a new study from the journal Pediatrics suggests a new cellphone could have unintended, dangerous consequences for some children.

The study looked at the emotional and physical health of 10,588 participants in the Adolescent Brain Cognitive Development Study (ABCD Study), along with the age at which they first obtained a smartphone. The ABCD Study describes itself as “the largest long-term study of brain development and child health in the United States.”

The researchers behind the peer-reviewed Pediatrics study found that children who had a smartp