from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A bitter white alkaloid, C8H10N4O2, often derived from tea or coffee and used in medicine chiefly as a mild stimulant and to treat certain kinds of headache.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An alkaloid, C8H10N4O2, found naturally in tea and coffee plants which acts as a mild stimulant of the central nervous system.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
While none of the participants were given a drink high in caffeine, the researchers concluded that caffeine is probably more helpful than sugar in staying alert.
After oil, caffeine is the biggest driver of our economy.
No caffeine is allowed on the day of the exam, before the test is completed.
To use that, you must have a scale that measures to within about 10mg, because 1 gram of caffeine is nearly toxic, you only need about 1/10 of that (one cup of coffee) or a little more.
In the nectar of grapefruit flowers, however, caffeine is present in much higher concentrations, reaching 94.2 milligrams per liter …
Also Mmmm. Interstingly, both of these teas are considered low enough in caffeine in Japan to be evening teas.
Most people have no idea just how much caffeine they consume daily because caffeine is in EVERYTHING -- energy drinks, vitamin waters, cold medicine, candy bars and even chewing gum and potato chips!
Many people with narcolepsy have tried over-the-counter medications which contain caffeine in an attempt to stay awake.
Life management blog Wise Bread takes a look at where caffeine is hiding in various popular foods and drinks we encounter every day, comparing caffeine levels in various coffees, teas, sodas, energy drinks, foods and medications.
Cafergot, a mixture of ergotamine tartrate and caffeine, is used to treat or prevent vascular headaches such as migraine and cluster headaches.
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