
Ran Barzilay, MD
Child and adolescent psychiatrist and translational neuroscientist at the University of Pennsylvania studying the exposome and the digital exposome's effects on youth mental and physical health, including suicide prevention research.
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Mar 4, 2026 • 52min
Does Age of Smartphone Ownership Affect Child Health? With Ran Barzilay, MD, PhD
Ran Barzilay, MD, PhD, a child and adolescent psychiatrist and translational neuroscientist at UPenn studying the digital exposome. He discusses measuring online environments and a study linking age of first smartphone ownership to depression, sleep loss, and obesity. He talks about how researchers infer causality, what is still unknown about specific apps, and practical family approaches when evidence is limited.


