Dangers of Smartphones for teens include adverse health outcomes

Alison Knopf

doi:10.1002/cpu.31032

January 1, 2026The Brown University Child & Adolescent Psychopharmacology Update

Dangers of Smartphones for teens include adverse health outcomes

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Key Points

This research aims to explore negative health consequences of smartphone use among teens.
Analyzed impacts of smartphone ownership on adolescents
Focused on early adolescence as a critical period
Examined rates of depression, obesity, and sleep patterns
Found higher rates of depression among teens with smartphones
Identified an increase in obesity linked to smartphone use
Reported insufficient sleep hours in adolescents with smartphones

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Implication

Researchers uncover adverse health outcomes related to smartphone ownership in early adolescence, suggesting caution.

Abstract

Calling smartphone ownership a “rite of passage for youths,” researchers wanted to find out more about negative consequences in early adolescence. They found higher rates of depression, obesity, and insufficient sleep.

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Alison Knopf (2026) studied this question.

synapsesocial.com/papers/698435fff1d9ada3c1fb575a https://doi.org/10.1002/cpu.31032

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Dangers of Smartphones for teens include adverse health outcomes

Key Points

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Implication

Abstract

Discussion

Cite This Study

Dangers of Smartphones for teens include adverse health outcomes

Key Points

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Implication

Abstract

Discussion

Cite This Study

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