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A Study of Caffeine

A Study of Caffeine. The negative effects of caffeine are sufficient enough that individuals should limit their consumption. A Study of Caffeine. Chemistry Physiological Effect Psychological Effect. Chemistry. Structure Physical Properties. General Mechanism.

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A Study of Caffeine

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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 • Physiological Effect • Psychological 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 • Most effects mediated 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 and 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 findings, caffeine intake should be limited

  14. Credits • Brian Canna • Ivy Choe • Brian Gillespie • Isaac Hubner • htp://udel.edu/bgillesp/~Caffeine.html

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