I don't drink caffeine.. like ever but sometimes I'll take an overnight shift at work - I bought Sobe Arush and they taste pretty good, unfortunately I was shaking and my heart was beating so much that I could barely focus.
Same thing happened when I had a few Jagerbombs at the bar.
I just steer clear of them now.
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 many other psychoactive substances it is legal and unregulated in nearly all jurisdictions.
Caffeine from coffee or other beverages is absorbed by the stomach and small intestine within 45 minutes of ingestion and then distributed throughout all tissues of the body.[39]
The half-life of caffeine—the time required for the body to eliminate one-half of the total amount of caffeine—varies widely among individuals according to such factors as age, liver function, pregnancy, some concurrent medications, and the level of enzymes in the liver needed for caffeine metabolism. In healthy adults, caffeine's half-life is approximately 4.9 hours.
The precise amount of caffeine necessary to produce effects varies from person to person depending on body size and degree of tolerance to caffeine. It takes less than an hour for caffeine to begin affecting the body and a mild dose wears off in three to four hours.[26]
Caution is warranted even for healthy adults who choose to consume energy beverages. Consumption of a single energy beverage will not lead to excessive caffeine intake; however, consumption of two or more beverages in a single day can.[10][11] Other stimulants such as ginseng are often added to energy beverages and may enhance the effects of caffeine,[12] and ingredients such as guarana themselves contain caffeine. Adverse effects associated with caffeine consumption in amounts greater than 400 mg include nervousness, irritability, sleeplessness, increased urination, abnormal heart rhythms (arrhythmia), and stomach upset.[10][11] The concentration of sugar in a sports drink is recommended to be 6-7% carbohydrate to allow maximum absorption and minimize spikes and crashes in blood sugar. Higher concentrations such as those seen in energy drinks will slow fluid absorption into the blood and energy system, increasing the possibility of dehydration. When a high level of sugar is in the blood stream the body cannot get the water into the cells that it needs because the water is busy trying to dilute concentration of sugar in the blood stream. The actual number of people suffering from adverse effects is difficult to measure since many cases go unreported.[13]
In the United States, energy drinks have been linked with reports of nausea, abnormal heart rhythms and emergency room visits.[14] The drinks may cause seizures due to the "crash" following the energy high that occurs after consumption.[15] Caffeine dosage is not required to be on the product label for food in the United States, unlike drugs, but some advocates are urging the FDA to change this practice.[16]
Until 2008, France banned the popular energy drink Red Bull after the death of eighteen-year-old Irish athlete Ross Cooney, who died as a result of playing a basketball game after consuming four cans of the drink.[17] The French Scientific Committee (J.D. Birkel) concluded that Red Bull has excessive amounts of caffeine.[17] Denmark also banned Red Bull. Britain investigated the drink, but only issued a warning against its use by pregnant women and children.[17]
wow. reading those last two mosts makes me want to dump my coffee out. im glad i rarely have energy drinks, and no longer have at least a can of coke a day!
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GO FLAMES, STAMPEDERS, ROUGHNECKS, CALVARY, DAWGS and SURGE!
Rockstar + vodka + OJ + 7Up - perfect Rock Band drink.
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MYK - Supports Arizona to democtratically pass laws for the state of Arizona
Rudy was the only hope in 08
2011 Election: Cons 40% - Nanos 38% Ekos 34%
