Caffeine induces a slightly elevated mood, alertness, sensitivity of touch, smell, sight, and hearing. It can also cause nervousness, irritability, insomnia, tremors, and depression. The physical effects can include constricted cerebral blood vessels, increased blood flow in the body, heart stimulation, increased basal metabolic rate, limited glucose metabolism, relaxation in some smooth muscles, and increased urine flow.
Caffeine also shortens sleep time, reduced depth of sleep, increases early dream-state sleep and reduces later dream-state sleep. It can intensify elevated blood pressure effects when combined with tobacco smoking. Caffeine is also sometimes substituted for amphetamine street drugs.
Harmful effects can include:
• rapid, irregular heartbeat.
• increased blood pressure
• high blood sugar levels
• urine acid
• tremors
• convulsions
• headache
• "caffeinism" (ringing in the ears, extreme sensitivity to pain and touch)
• sleep disorders
• possible......

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Title: Caffeine Addict
Approximate Word Count: 289
Approximate Pages: 2 (250 words per double-spaced page)

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