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J Caffeine Res. 2013 Sep;3(3):114-130.

Caffeine Use Disorder: A Comprehensive Review and Research Agenda.

Author information

1
Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine , Baltimore, Maryland.
2
Department of Psychology, American University , Washington, District of Columbia.
3
Department of Psychology, University of Vermont , Burlington, Vermont. ; Department of Psychiatry, University of Vermont , Burlington, Vermont.
4
Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine , Baltimore, Maryland. ; Department of Neuroscience, The Johns Hopkins University School of Medicine , Baltimore, Maryland.

Abstract

Caffeine is the most commonly used drug in the world. Although consumption of low to moderate doses of caffeine is generally safe, an increasing number of clinical studies are showing that some caffeine users become dependent on the drug and are unable to reduce consumption despite knowledge of recurrent health problems associated with continued use. Thus, the World Health Organization and some health care professionals recognize caffeine dependence as a clinical disorder. In this comprehensive literature review, we summarize published research on the biological evidence for caffeine dependence; we provide a systematic review of the prevalence of caffeine dependence and rates of endorsement of clinically meaningful indicators of distress and functional impairment among habitual caffeine users; we discuss the diagnostic criteria for Caffeine Use Disorder-a condition for further study included in the Diagnostic and Statistical Manual of Mental Disorders (5th ed.); and we outline a research agenda to help guide future clinical, epidemiological, and genetic investigations of caffeine dependence. Numerous controlled laboratory investigations reviewed in this article show that caffeine produces behavioral and physiological effects similar to other drugs of dependence. Moreover, several recent clinical studies indicate that caffeine dependence is a clinically meaningful disorder that affects a nontrivial proportion of caffeine users. Nevertheless, more research is needed to determine the reliability, validity, and prevalence of this clinically important health problem.

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