Inspired by the "What's your favorite caffine drink?" thread...
http://en.wikipedia.org/wiki/Caffeine)
Caffiene is, uh, dangerous. It is highly addictive, causing withdrawal symptoms. Read this and weep.
In large amounts, and especially over extended periods of time, caffeine can lead to a condition known as "caffeinism." Caffeinism usually combines "caffeine dependency" with a wide range of unpleasant physical and mental conditions including nervousness, irritability, anxiety, tremulousness, muscle twitching (hyperreflexia), insomnia, headaches, respiratory alkalosis[51] and heart palpitations.[52] Furthermore, because caffeine increases the production of stomach acid, high usage over time can lead to peptic ulcers, erosive esophagitis, and gastroesophageal reflux disease.[53]
An acute overdose of caffeine, usually in excess of 400 milligrams (more than 3–4 cups of brewed coffee), can result in a state of central nervous system overstimulation called caffeine intoxication. Some people seeking caffeine intoxication resort to insufflation (snorting) of caffeine powder, usually finely crushed caffeine tablets. This induces a faster and more intense reaction. The symptoms of caffeine intoxication may include restlessness, nervousness, excitement, insomnia, flushing of the face, increased urination, gastrointestinal disturbance, muscle twitching, a rambling flow of thought and speech, irritability, irregular or rapid heart beat, and psychomotor agitation.[52][56]
In cases of extreme overdose, death can result. The median lethal dose (LD50) of caffeine is 192 milligrams per kilogram in rats.[57] The LD50 of caffeine in humans is dependent on weight and individual sensitivity and estimated to be about 150 to 200 milligrams per kilogram of body mass, roughly 80 to 100 cups of coffee for an average adult taken within a limited timeframe that is dependent on half-life. Though achieving lethal dose with caffeine would be exceptionally difficult with regular coffee, there have been reported deaths from overdosing on caffeine pills, with serious symptoms of overdose requiring hospitalization occurring from as little as 2 grams of caffeine.[58][59][60][61] Death typically occurs due to ventricular fibrillation brought about by effects of caffeine on the cardiovascular system.
Treatment of severe caffeine intoxication is generally supportive, providing treatment of the immediate symptoms, but if the patient has very high serum levels of caffeine then peritoneal dialysis, hemodialysis, or hemofiltration may be required.
Long-term overuse of caffeine can elicit a number of psychiatric disturbances. Two such disorders recognized by the American Psychiatric Association (APA) are caffeine-induced sleep disorder and caffeine-induced anxiety disorder.
In the case of caffeine-induced sleep disorder, an individual regularly ingests high doses of caffeine sufficient to induce a significant disturbance in his or her sleep, sufficiently severe to warrant clinical attention.[62]
In some individuals, the large amounts of caffeine can induce anxiety severe enough to necessitate clinical attention. This caffeine-induced anxiety disorder can take many forms, from generalized anxiety to panic attacks, obsessive-compulsive symptoms, or even phobic symptoms.[62] Because this condition can mimic organic mental disorders, such as panic disorder, generalized anxiety disorder, bipolar disorder, or even schizophrenia, a number of medical professionals believe caffeine-intoxicated people are routinely misdiagnosed and unnecessarily medicated when the treatment for caffeine-induced psychosis would simply be to withhold further caffeine.[63] A study in the British Journal of Addiction concluded that caffeinism, although infrequently diagnosed, may afflict as many as one person in ten of the population.[64]
Withdrawal symptoms—possibly including headache, irritability, an inability to concentrate, and stomach aches[47]—may appear within 12 to 24 hours after discontinuation of caffeine intake, peak at roughly 48 hours, and usually last from one to five days, representing the time required for the number of adenosine receptors in the brain to revert to "normal" levels, uninfluenced by caffeine consumption. Caffeine causes excess release of stomach acids during ingestion.[48] When in withdrawal the stomach acid levels decrease substantially and can cause some stomach aches in certain people.[citation needed] The aches normally last between 24–48 hours and can be confused with constipation.[citation needed] Analgesics, such as aspirin, can relieve the pain symptoms, as can a small dose of caffeine.[49] Most effective is a combination of both an analgesic and a small amount of caffeine.
It's horrible. Horrible. We should ban caffeine right now, and stop this highly dangerous drug from reaching our childern, and causing them serve pain. Because I know of these deadly effects, I rarely drink caffiene, and only if there are no other soft drinks around.
Alright, fine. Most people like Caffeine. It has medicial properties as well and is in many drugs. Like any drug, it has bad effects and good effects. But most people don't care about caffeine's ability to stop heart attacks or how it can act as a pain relivant, or even as a "performance-enhancing drug" (it can help you concreate in chess, making you win, which is why it is likely they will ban Caffiene, if they haven't already).
People take caffiene because it's fun to drink, I assume. It's "recreational". And if so...oh my god. Is it okay to have this sort of legal recreational drug, regardless of the side-effects it may have? Should it at least be regulated? Why are we able to tolerate such side-effects of Caffiene and not other recreational drugs?