About The Study: This analysis found that both low and high increases in social media use throughout early adolescence were significantly associated with lower performance in specific aspects of cognitive function, supporting a prior finding that greater screen time was negatively but weakly associated with adolescent cognitive performance.
Corresponding Author: To contact the corresponding author, Jason M. Nagata, MD, MSc, email jason.nagata@ucsf.edu .
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(doi:10.1001/jama.2025.16613)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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