Caffeine Background 

Importance of Topic to Practice
Globally, caffeine is the most widely consumed stimulant and has been consumed for thousands of years, probably starting with the first teas (1). It is found in common beverages such as coffee, tea, soft drinks and energy drinks; in cocoa and chocolate-containing foods; and in some medications and supplements. Because of caffeine’s wide-spread consumption, the fact that it is readily digested, absorbed and metabolized, and can affect most body systems, the
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