Caff
Caffeine
Caffeine (pronounced: /ˈkæfiːn, ˈkæˈfiːn, ˈkɑː-/), is a central nervous system (CNS) stimulant of the methylxanthine class. It is the world's most widely consumed psychoactive drug. Unlike many other psychoactive substances, it is legal and unregulated in nearly all parts of the world.
Etymology
The word "caffeine" is derived from the Italian word "caffè", the term for coffee in Italy. The chemical suffix "-ine" was added by the German chemist Friedrich Ferdinand Runge, who identified caffeine as a chemical compound in 1819.
Related Terms
- Methylxanthine: A class of compounds that includes caffeine, theobromine, and theophylline. These compounds are found in a number of different foods and beverages, including coffee, tea, and chocolate.
- Psychoactive drug: A chemical substance that changes brain function and results in alterations in perception, mood, consciousness, cognition, or behavior.
- Central nervous system: The part of the nervous system consisting primarily of the brain and spinal cord. The CNS is responsible for integrating sensory information and responding accordingly.
See Also
External links
- Medical encyclopedia article on Caff
- Wikipedia's article - Caff
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