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Related Experiment Videos

Caffeine consumption among medical students.

Y Mino1, N Yasuda, T Fujimura

  • 1Department of Public Health, Kochi Medical School.

Arukoru Kenkyu to Yakubutsu Izon = Japanese Journal of Alcohol Studies & Drug Dependence
|December 1, 1990
PubMed
Summary
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Caffeine consumption is rising in Japan, with 15.2% of medical students being high-dose users. This study explores caffeine

Area of Science:

  • Epidemiology
  • Nutritional Science
  • Public Health

Background:

  • Caffeine consumption is increasing in Japan.
  • Previous research suggests potential health associations with caffeine, prompting further investigation.
  • Limited epidemiological data exists on caffeine intake within the general Japanese population.

Purpose of the Study:

  • To investigate caffeine consumption patterns and associated factors among Japanese medical students.
  • To understand the motivations for caffeine intake and perceived effects.
  • To explore the relationship between caffeine consumption and other lifestyle habits.

Main Methods:

  • A questionnaire survey was administered to medical students.
  • Data collected included estimated daily caffeine intake, reasons for consumption, perceived effects, and history of using caffeine supplements.

Related Experiment Videos

  • Statistical analysis explored correlations with alcohol use and smoking.

    • Main Results:

    • 15.2% of participants were classified as high-dose caffeine users (≥250 mg/day), with a higher prevalence in males.
    • Common reasons for caffeine intake included combating sleepiness and dry mouth; perceived effects included improved clarity, reduced sleepiness, and epigastric discomfort.
    • One-third of respondents reported using caffeine tablets or ampules to combat sleepiness, with higher daily intake correlating with increased usage in males.
    • Caffeine consumption showed an association with alcohol consumption and smoking habits in males.

    Conclusions:

    • A significant proportion of medical students exhibit high daily caffeine intake.
    • Caffeine consumption is linked to specific lifestyle behaviors, particularly in males.
    • Further research is warranted to understand the broader public health implications of caffeine use in Japan.