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Related Experiment Video

Updated: Apr 15, 2026

Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine
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Caffeine Awareness in Children: Insights from a Pilot Study.

Tushar P Thakre1,2,3, Ketan Deoras4, Catherine Griffin5

  • 1Lata Medical Research Foundation, Nagpur, India.

Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine
|April 8, 2015
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Summary

Many adolescents lack knowledge about caffeine in common drinks, impacting sleep studies. Educational interventions are needed to improve caffeine literacy in young people.

Keywords:
adolescentscaffeinesleep

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Area of Science:

  • Adolescent Health
  • Nutrition Science
  • Sleep Medicine

Background:

  • Caffeine is a widely consumed psychoactive substance impacting sleep patterns.
  • Increasing caffeine intake in children, primarily through sodas, raises concerns.
  • Adolescents may possess limited knowledge regarding caffeine content in various beverages, potentially skewing research on caffeine's sleep effects.

Purpose of the Study:

  • To investigate adolescents' knowledge and intake of caffeine.
  • To assess caffeine literacy among middle school students in a Cleveland-area public school.
  • To determine if a lack of caffeine knowledge hinders accurate self-reporting in sleep studies.

Main Methods:

  • Surveyed 555 seventh and eighth graders using the Caffeine Literacy and Sleep Study (CLASS) and Cleveland Adolescent Sleepiness Questionnaire (CASQ).
  • CLASS assessed caffeine knowledge, intake patterns (type, quantity, timing), and sleep habits.
  • CASQ measured excessive daytime sleepiness in adolescents.

Main Results:

  • Nearly 29% of students were unaware their favorite drinks contained caffeine.
  • Over 50% could not identify beverages with the highest caffeine content.
  • Low percentages correctly identified caffeine content in light-colored sodas and some teas, though Mountain Dew was widely recognized as caffeinated.

Conclusions:

  • Adolescents demonstrate inconsistent ability to identify caffeine in common beverages.
  • Findings highlight a need for further research into adolescent caffeine literacy.
  • Educational interventions are recommended to improve understanding of caffeine content and its impact.