Future research studies are needed to understand the particular consequences of adolescent human caffeine consumption. Until then, it may be prudent for parents to discourage caffeine use in children and for young adults to moderate their caffeine use. Your morning coffee may be up to no good.
Neill, C. E. O. A., Levis, S. C., Schreiner, D. C., Amat, J., Maier, S. F., & Bachtell, R. K. (2015). Effects of Adolescent Caffeine Consumption on Cocaine Sensitivity. Neuropsychopharmacology, 40(4), 813–821.
Kendler, et al. (2006). Caffeine intake, toxicity and dependence and lifetime risk for psychiatric and substance use disorders: an epidemiologic and co-twin control analysis. Psychology Med.
Frary, et al. (2005). Food sources and intakes of caffeine in the diets of persons in the United States. J Am Diet Assoc.
Temple, et al. (2009). Caffeine use in children: what we know, what we have left to learn, and why we should worry. Neuroscience and biobehavioral reviews.
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