Stimulating alkaloid found in coffee plants, and commonly consumed through drinking coffee[?] Often used to stay awake in times of crisis
Alkaloid that stimulates alertness and boosts energy A herbal compound that enhances alertness and fights fatigue Caffeine increases endurance during prolonged submaximal activity by increasing blood epinephrine (adrenaline) levels, thereby allowing fat cells to break down more readily during aerobic activity Caffeine also makes a muscle contraction more forceful
The drug contained in coffee A bitter white alkaloid often derived from coffee (or tea) and used in medicine chiefly as a mild stimulant and to treat certain kinds of headache
An alkaloid, C{8}H{10}N{4}O{2}, found naturally in tea and coffee plants which acts as a mild stimulant of the central nervous system
the staple foodstuff of any VCE student Can be obtained in many forms such as Coke, coffee and caffeinated cordials
Caffeine is a naturally-occurring substance found in the leaves, seeds or fruits of over 63 plant species worldwide and is part of a group of compounds known as methylxanthines The most commonly known sources of caffeine are coffee and cocoa beans, cola nuts and tea leaves Caffeine is a pharmacologically active substance and, depending on the dose, can be a mild central nervous system stimulant Caffeine does not accumulate in the body over the course of time and is normally excreted within several hours of consumption
A bitter crystalline alkaloid found in coffee, tea, and kola nuts; it is a heart and central nervous system stimulant
Caffeine is a chemical substance found in coffee, tea, and cocoa, which affects your brain and body and makes you more active. a substance in tea, coffee, and some other drinks that makes you feel more active decaffeinated (kaffein, from kaffee , from café). Heterocyclic compound that, like other alkaloids, has marked physiological effects. It occurs in coffee beans, tea leaves, kola nuts, cacao, maté, and guarana and in the products made from them. Its stimulating effect on the central nervous system, heart, cardiovascular system, and kidneys makes it medically useful in treating respiratory depression caused by overdose of barbiturates, morphine, or heroin. Its positive effects can include improved motor performance, decreased fatigue, increased alertness, and enhanced sensory activity. Excessive caffeine can produce irritability, anxiety, insomnia, and potentially serious symptoms such as heart irregularities and delirium. Much of the caffeine included in many over-the-counter stimulants, cold remedies, and painkillers has been extracted during production of decaffeinated coffee and tea