addicted to u?!

Caffeine is a bitter white crystalline xanthine alkaloid 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 over 60 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 or from cacao. 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.

Because of the wide variety of products containing caffeine a person may be ingesting a considerable amount without being aware of it. Sources of caffeine include preparations sold to assist in fitness and sporting performance, energy drinks, soft drinks, various medicines, herbal tonics containing guarana, as well as coffee, tea and chocolate.
Caffeine overdose can cause nausea, diarrhoea, light-headedness and urinary frequency. Caffeine withdrawal even after moderate chronic intake may be associated with headache, nausea, nervousness, reduced alertness and depressed mood. Symptoms are most acute in the first 20-48 hours but they may persist for as long as seven days.

1. Caffeine is similar to drug based on what ive search.

2. Caffeine also affects BRAIN how? - Your brain creates a chemical called adenosine. This chemical binds to adenosine receptors in the brain. The binding of adenosine causes drowsiness by slowing down nerve cell activity.

3. The most important long-term problem is the effect that caffeine has on sleep. Adenosine reception is important to sleep, and especially to deep sleep. If you drink a big cup of coffee with 200 mg of caffeine in it at 3:00 PM, about 100mg is still in your system at 9:00 PM. You may be able to fall asleep, but you body probably will miss out on the benefits of deep sleep. The deficit adds up fast. The next day you feel worse, so you need caffeine as soon as you get out of bed. The cycle continues day after day.

4. Caffeine also affects HEART RATE (kay bhe nag papulpitate ka)

5. Even your memory can damage.

i know , . Coffee

is one of the most popular beverage nowadays, but even there are so many people who love to drink coffee there is also a lot of health concern about drinking coffee.

6. very small amount of Caffeine can cause cancer early 1980's.

7. Caffeine is not only found in coffee, it is also found in black tea, green tea, chocolate, some soft drinks, energy drinks and over the counter medications.

8. Coffee not so good for all preggy ladies.

9. Caffeine withdrawal can give you headaches, make you crabby, give you muscle aches and generally you may feel miserable for a few days.

10. lahat ng sobra MASAMA

kaya mr. jon magat read this okay!

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nakaka 5 na ako avatar today sa mga nag papagawa salamat at nasiyahan kayo :)