to enhance a person's physical or mental welfare. In fact, people use caffeine for all

of these purposes and caffeine can do all of these things, but usually in a very

limited way. The actual source of caffeine is the coffee bean, tea leaf, kola nut and

cacao pod. When isolated in pure form, caffeine is a white crystalline powder that

tastes very bitter. Despite it's less than savory flavor, caffeine is the most popular

drug in the world. Females metabolize caffeine 20-30% more quickly than males.

However, in general men seem to consume more caffeine than women and often

caffeine consumption increases for people in their early 20s and decreases for people

over the age of 65. Though caffeine is a chemical used for both medical and non-

medical reasons, most often it is used non-medically for its stimulating effect on

mood and behavior. Medically, caffeine is useful as a cardiac stimulant and also as a

mild diuretic (it increases urine production). Recreational, it is used to provide a

"boost of energy" or a feeling of heightened awareness. Some studies show that

caffeine causes physical dependence.

to facilitate the production of seizures during electroconvulsive therapy. Also,

things that gives caffeine its addictive qualities. Caffeine increases dopamine levels

may cause users to suffer from chronic insomnia, persistent anxiety and depression,

of caffeine because nearly everyone in our society uses caffeine regularly in one form

psychological dependence on the drug. This means that interruption of the regular

Some common words found in the essay are:
, Canadian United, mg caffeine, caffeine sleep, caffeine causes, coffee tea, caffeine added, stimulating effect, source caffeine, colas contain, deep sleep, adenosine reception,
Approximate Word count = 1560
Approximate Pages = 6 (250 words per page double spaced)