Thursday, November 23, 2017
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Glossary

To get a more in-depth description of any terms in the Glossary, as well as a list of articles that relate to the term, just click on the term name in the list of terms below. You will be taken to a page that contains the terms, the longer description, and a list of the articles related to that topic.

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Caffeine is a bitter, white crystalline xanthine alkaloid that acts as a stimulant drug.  Caffeine is found in varying quantities in the seeds, leaves, and fruit of some plants, where it acts as a natural pesticide that paralyzes and kills certain insects feeding on the plants.


It is most commonly consumed by humans in infusions extracted from the seed of the coffee plant and the leaves of the tea bush, as well as from various foods and drinks containing products derived from the kola nut.  Other sources include yerba maté, guarana berries, guayusa, and the yaupon holly.


In humans, caffeine acts as a central nervous system stimulant, temporarily warding off drowsiness and restoring alertness.  It is the world's most widely consumed psychoactive drug, but, unlike many other psychoactive substances, it is both legal and unregulated in nearly all parts of the world.


Beverages containing caffeine, such as coffee, tea, soft drinks, and energy drinks, enjoy great popularity; in North America, 90% of adults consume caffeine daily.


Caffeine is toxic at sufficiently high doses, but ordinary consumption poses few known health risks, even when carried on for years — there may be a modest protective effect against some diseases, including certain types of cancer.


There are different opinions about whether coffee is good for you or is not good for you.  If you want to use a coffee that is healthy for you, CLICK HERE


 


Also see: healthy coffee

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