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Effects of Caffeine on Reaction Time

📑 5 slides 👁 35 views 📅 3/17/2026
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Introduction to Caffeine

Caffeine is a stimulant found in coffee, tea, and energy drinks.

Introduction to Caffeine
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How Caffeine Affects the Brain

  • Caffeine increases dopamine and norepinephrine levels, enhancing focus.
  • Peak effects occur 30-60 minutes after consumption, lasting 3-5 hours.
  • High doses may cause jitteriness, negatively impacting reaction time.
How Caffeine Affects the Brain
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Caffeine and Reaction Time Studies

  • A 2018 study found 200mg caffeine improved reaction time by 12% in athletes.
  • Regular consumers may develop tolerance, reducing caffeine's effects over time.
  • Sleep-deprived individuals benefit more from caffeine's reaction time boost.
Caffeine and Reaction Time Studies
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Optimal Caffeine Consumption

  • 200-400mg daily is optimal for most adults (2-4 cups of coffee).
  • Timing matters - best consumed 1 hour before needed cognitive performance.
  • Avoid caffeine 6 hours before sleep to prevent interference with rest.
Optimal Caffeine Consumption
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Conclusion and Recommendations

  • Moderate caffeine intake can significantly improve reaction time.
  • Effects vary based on individual tolerance and consumption habits.
  • Balance caffeine use with proper hydration and sleep for best results.
Conclusion and Recommendations
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