A Study of Caffeine

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 lt
  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