Publications by authors named "C Helmer"

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Cannabis expectancies mediate the association between social media use and cannabis experimentation in early adolescents: A prospective cohort study.
Jason M Nagata, Andrew Caffrey, Nathan D Nguyen, Sahana Nayak, Isaac Frimpong, Christiane K Helmer

Drug Alcohol Depend· December 2025

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Prospective associations of sleep duration and screen time with transition from overweight/obesity to normal BMI in U.S. adolescents.
Abubakr A Al-Shoaibi, Christiane K Helmer, Kyle T Ganson, Alexander Testa, Jason M Lavender

Int J Obes (Lond)· December 2025

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Updated LIfestyle for BRAin health (LIBRA2) Score, Genetics, and Risk of Alzheimer Disease, Vascular Dementia, and Stroke in Older Adults.
Colin Rosenau, Jeanne Neuffer, Sebastian Köhler, Catherine Helmer, Quentin Le Grand

Neurology· November 2025

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Longitudinal changes in screen time, sleep, and sports/exercise activity in early adolescence.
Jason M Nagata, Christiane K Helmer, Zain Memon, Sapna Ramappa, Jennifer H Wong

BMC Pediatr· November 2025

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Social epidemiology of multidimensional sleep health in early adolescence.
Jason M Nagata, Christiane K Helmer, Isaac Frimpong, Keira Beltran Murillo, Alexander W Heuer

Pediatr Res· November 2025

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