Submitted by duffman5700 on October 24, 2007

• Category: Social Issues
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Caffeine

What is Caffeine and how does it affect the body?

Caffeine is a xanthine alkaloid that acts as a stimulant in humans. It is found in the leaves and beans of the coffee plant, in tea, yerba mate, and guarana berries, and in small quantities in cocoa, the kola nut and the Yaupon Holly. Overall, caffeine is found in the beans, leaves, and fruit of over 60 plants, where it acts as a natural pesticide that paralyzes and kills certain insects feeding upon them.
Caffeine is a central nervous system stimulant, having the effect of briefly stopping drowsiness and restoring alertness. Beverages containing caffeine, such as coffee, tea, soft drinks (Pepsi) and energy drinks...

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