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Effects of Caffeine: A Comprehensive Study

This study delves into the negative impacts of caffeine on both physiological and psychological functions. It covers the chemistry, sources, and physiological effects of caffeine on various organ systems. The psychological effects are explored in detail, from moderate to high dosage and addiction/withdrawal symptoms. Recommendations are made to limit caffeine intake to under 300mg per day.

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Effects of Caffeine: A Comprehensive Study

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  1. A Study of Caffeine The negative effects of caffeine are sufficient enough that individuals should limit their consumption.

  2. A Study of Caffeine • Chemistry • Psychological Effect • Physiological Effect

  3. Chemistry • Structure • Physical Properties

  4. General Mechanism • Adenosine : causes drowsiness by slowing down nerve cell/s activity • Caffeine : causes the cell/s to speed up

  5. Sources • Coffee • Drinks • Foods • Non-prescription Drugs

  6. Physiological Effects • Caffeine effects all major organ systems • Many effects mediates in the brain • Effects vary from benign to severe • Variability between individuals • Large doses are always maleficent • Evidence warrants limiting caffeine intake to < 300 mg/day (3 cups of coffee)

  7. Caffeine & Organs • Cardiovascular system & Caffeine: heart, veins & arteries, blood pressure and content • Digestive System & Caffeine: stomach, intestines, liver, bowels and bladder

  8. Caffeine & Organs • Muscular & Skeletal Systems & Caffeine: skeletal muscles and bone health • Reproductive System & Caffeine: pregnancy and infertility • Respiratory System & Caffeine: lungs and respiration

  9. Psychological Effects • Moderate dosage • High Dosage • Addiction/Withdrawal

  10. Moderate Dosage • Effects • Dizziness, anxiety, agitation, irritability, restlessness, insomnia, recurring headaches, nausea, hyperesthesia • Post Stimulation Effects • Lower CNS stimulation compared to placebo, fatigue, lethargy, apathy

  11. High Dosage • Caffeinism A.K.A Restless Legs Syndrome • similar to anxiety neurosis • anxiety, hysteria, nervousness, irritability, headache, twitching • misdiagnosed • sleep disorders

  12. Addiction/Withdrawal • Addiction can occur after only 6-15 days of exposure to a moderate dose • Withdrawal symptoms set in within 12-24 hours after cessation of caffeine intake • include: fatigue, headache, apathy, and anxiety • symptoms peak around 36 hours and subside after a week • symptoms can be relieved through dose tapering and OTC analgesics

  13. Conclusion • Caffeine can negatively effect both physiological and psychological functions • More than 300 mg of caffeine per day can be harmful • Based on our evidence, caffeine intake should be limited

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