Caffeine is the most commonly used mood-altering drug in the world. Caffeine is found in numerous plants, the most widely consumed being coffee, tea, cola nut, cocao pod, guarana, and maté. It is estimated that in North America between 80 and 90 percent of adults and children habitually consume caffeine. About 15% of the general population report having stopped caffeine use completely, citing concern about health and unpleasant side effects.
In the United States the average per capita daily intake among adult caffeine consumers is 280 milligrams (the equivalent of 17 ounces of brewed coffee or 84 ounces of soft drink). Studies show that 30 milligrams or less of caffeine can alter self-reports of mood and affect behavior and 100 mg per day can lead to physical dependence and withdrawal symptoms upon abstinence.
Coffee is the leading dietary source of caffeine among adults in the United States, while soft drinks represent the largest source of caffeine for children. Caffeine......

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Title: Caffeine
Approximate Word Count: 481
Approximate Pages: 2 (250 words per double-spaced page)

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