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Dec 2, 2008
... Caffeine Addiction has become a real serious problem in the last few years, since
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...www.medicinenet.comJan 19, 2005
... Can't get going without your morning coffee? You may have a mental illness, according to doctors who want
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...news.nationalgeographic.comCaffeine is highly addictive. Quitting coffee can cause withdrawal symptoms such as headaches, sleepiness and irritability. The acidic nature of coffee can
...www.freedomyou.com
The world's primary source of
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..... [78] A study in the British Journal of
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...en.wikipedia.orgCaffeine Addiction: Primary Articles. Homeopathy. Judyth Reichenberg-Ullman N.D. , M.S.W., DHANP.
Caffeine Free. Michael Traub N.D.
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Wikipedia
Caffeine
From Wikipedia, the free encyclopedia
(Redirected from Caffeine addiction)
For other uses, see Caffeine (disambiguation).
Caffeine
IUPAC name
1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione
Other names
1,3,7-trimethylxanthine, trimethylxanthine,
theine, methyltheobromine
Identifiers
CAS number
58-08-2
RTECS number
EV6475000
SMILES
C[n]1cnc2N(C)C(=O)N(C)C(=O)c12
ChemSpider ID
2424
Properties
Molecular formula
C8H10N4O2
Molar mass
194.19 g·mol−1
Appearance
Odorless, white needles or powder
Density
1.2 g·cm−3, solid
Melting point
237 °C (non-equilibrium, superheated)
Boiling point
178 °C (sublimes)
Solubility in water
22 mg·mL−1 (25 °C)
180 mg·mL−1 (80 °C)
670 mg·mL−1 (100 °C)
Acidity (pKa)
−0.13 – 1.22[1]
Hazards
MSDS
External MSDS
Main hazards
May be fatal if inhaled, swallowed
or absorbed through the skin.
NFPA 704
1
2
0
Flash point
N/A
LD50
192 mg/kg (rat, oral)[2]
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox references
Caffeine is a bitter white crystalline xanthine that acts as a psychoactive stimulant drug and a mild diuretic (speeds up urine production)[3] in humans and other animals. Caffeine was discovered by a German chemist, Friedrich Ferdinand Runge, in 1819. He coined the term "kaffein", a chemical compound in coffee, which in English became caffeine.[4] Caffeine is also called guaranine when found in guarana, mateine when found in mate, and theine when found in tea; all of these names are synonyms for the same chemical compound.
Caffeine is found in varying quantities in the beans, 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 beans 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 mate, guarana berries, and the Yaupon Holly.
In humans, caffeine is a central nervous system (CNS) stimulant, having the effect of temporarily warding off drowsiness and restoring alertness. Beverages containing caffeine, such as coffee, tea, soft drinks and energy drinks enjoy great popularity. Caffeine is the world's most widely consumed psychoactive substance, but unlike most others, it is legal and unregulated in nearly all jurisdictions. In North America, 90% of adults consume caffeine daily.[5] The U.S. Food and Drug Administration lists caffeine as a "Multiple Purpose Generally Recognized as Safe Food Substance".[6] One 2008 study suggested that women consuming 200 milligrams or more of caffeine per day had about twice the miscarriage risk as women who had none, while another 2008 study found no link between miscarriage and caffeine consumption.[7]
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