A recent report from the University of Massachusetts Medical School states that emergency departments across the country are receiving increasing cases of caffeine poisoning and overdoses.
They examined 4,600 caffeine-related calls to poison control centers in 2005. Of these, 2,345 had to be treated in a health center. More than half of the calls were from people under the age of 19.
Richard Church, M.D., a UMass toxicologist and one of the study's lead authors, said that as caffeinated beverages in general become more popular and their consumption spreads to "younger people," poison control centers are getting more poison control calls. — and most of those calls are for conditions serious enough that the centers recommend a visit to the local emergency room or doctor's office, at least for observation.
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Church said most of the calls they receive are about "mild symptoms." "We're talking about nausea, headaches, tachycardia." He also cited daily headaches, insomnia and anxiety as symptoms that worry people enough to call.
But later, he continued, doctors worry just as much as emergency physicians and toxicologists. Nausea, he says, can lead to intractable vomiting, vomiting that cannot be controlled with the medications normally given for this purpose in the emergency room. Additionally, people who have or are predisposed to seizures may be at risk for seizures caused by too much caffeine, and people with heart disease, particularly undiagnosed heart disease, can trigger life-threatening arrhythmias in their hearts.
How much caffeine is too much?
That's a tough question to answer, Church says. Some will be fine. Since we all metabolize caffeine a little differently, the amount one person drinks and is okay with could be very dangerous for another person. Some research suggests that five to ten grams can be a potentially lethal dose, even in a healthy young person with no existing problems.
Energy drinks are a leading contributor to caffeine overdoses, says Church. They're really being marketed to the teen market judging by the cans and marketing materials, although industry spokespeople insist they're marketing energy drinks to adults.
But energy drinks aren't the only culprits in caffeine overdoses. Many foods and drinks contain caffeine, and coffee shops have replaced soda shops as the after-school hangout spot for teens and high schoolers. Teens are more likely to wash down red-eye specialties with four espressos and a double coffee for that extra caffeinated kick, then wash it down with a can of Jolt and a Red Bull.
Symptoms of caffeine poisoning or caffeine overdose include:
* Blushed face
* Diuresis (increased urine production)
* gastrointestinal disorders
* Muscle cramps
* Speak or think in an incoherent way
* Tachycardia (rapid heartbeat) or abnormal heart rhythms
* inexhaustible periods
* Psychomotor Agitation
People have reported ringing in their ears or flashes of light with caffeine doses greater than 250 mg. Cases of profuse sweating and diarrhea have also been reported. Doses of caffeine in excess of 10g can cause respiratory failure, seizures and eventually death.
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I started drinking coffee to stay awake while commuting to work. It wasn't working that well anymore, so I switched to the Starbucks espresso roast you buy at the store. For two days I poisoned myself with it and had no idea why I was getting dizzy, nauseated, having confused thoughts and passing out and blushing. I thought I had a stomach problem, the next day I started wondering if I was pregnant! Until a colleague mentioned coffee! ! Rough. There must be warning signs!
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I personally hate caffeine… every time I drink green tea, iced tea or coffee I get dizzy… I remember the last time I decided to try them all (tea, redbull and coffee) I have 4 days long time no sleep... lol my heart was beating fast... I thought who, I was going to die! :D I don't know how many grams I took, but all I can say is be careful!
Hello three years ago :D
Um... Yeah, that's really scary. I drank a can of Burn (energy drink, 500ml contains 160mg caffeine) yesterday. This one was trying to stay awake for school after 24 hours without sleep. After that we went up a mountain and I realized that I wasn't as tired as I should have been. Also, I woke up after about 10 hours of sleep, not tired at all, and after reading about caffeine (38 hours without sleep and not tired makes me suspicious), I checked my heart rate and found it was around 115 beats per minute fluctuated.
And some info to help assess how severe the symptoms are: 14 years old, 110 pounds, 5'7″
Can someone explain how a single can of Burn was effective?
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I've been very sensitive (I get nervous) to coffee for about 5 or 6 years. I recently got dizzy after drinking a large caffeinated soda. I thought something was wrong with me! I didn't know dizziness was a side effect. I think I'm done with caffeine now.
Most days I have around 200mg of caffeine. It just calms me down. I had a caffeine pill the other day and an energy drink that had 270mg of caffeine in it and I just sat there staring at one spot.
Caffeine has the opposite effect on me.
And Brooke, I've never had more than 2 grams of caffeine a day and I'm really addicted to it. It is doubtful that you consume 6 grams of caffeine in a day. That's an incredible amount.
When I'm angry or upset, I take out my cell phone to call my sister and get some caffeine. It's like my kind of antidepressant. When we are together we drink a lot. She's definitely "addicted" to it. She cannot go 7 days without him. Getting drunk can be a lot of fun. The excitement, the cramps, the non-stop laughter, not being able to sleep. I'm the normal one who stutters.
She will eat like 3 cans and call me SO hyper at the most random of times. I'm really worried about her. I don't think it's ever gone over 6 grams. Be. I do not really know. We had to test him for diabetes. My parents hate soft drinks because of the amount of sugar in them. And they hate energy drinks.
MY family situation is a bit chaotic. She lives with my grandmother and father who drink soft drinks that you can't even imagine. She always fills me up and I just hide it in my closet :P I don't do it that often, well I don't know what you count that often. But I'm there once or twice a week. It's fun after a long day. Subsequent blocking is therefore very simple.
responder(Video) Signs Of Caffeine Overdose! | Coffee Buzz Club |
Natalia, that's interesting. I can drink just a little ice chai tea a day and get dizzy almost every time (vertigo problems). I'm glad I'm not the only one. I've never had this problem and it's very frustrating. I love my cha I think the tea has no more than 50mg. caffeine too. I would like to know why is it affecting us like this?
natalia and Dice
Even a cup of coffee makes me sick. I don't drink very often, but if I drink coffee three days in a row and one cup a day, I get dizzy and have a bad headache. I almost fell once.
Jakob Larry Dice
Interesting. One wonders how much anxiety could be easily resolved by telling people to switch to or stop using decaffeinated coffee.
I've noticed some dizziness after a hard workout if I drink coffee beforehand, very rarely, but it passes. When that happens, I know it's time to slow down and start drinking decaf.
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Why does coffee make me feel like drunk? ›
Why do I Feel Drunk When I Drink Coffee? Caffeine, in general, makes your heart beat faster. If you focus on your heart rate, you start to release more adrenaline. In turn, this can make you feel anxious, hyper and dizzy—similar to what you may feel during a night on the town with a few shots involved.Can caffeine overdose make you dizzy? ›
Caffeine overdose can cause nausea, diarrhoea, light-headedness and urinary frequency.Is caffeine intoxication a thing? ›
Caffeinism is a state of intoxication caused by excessive consumption of caffeine. This intoxication covers a variety of unpleasant physical and mental symptoms associated with the consumption of excessive amounts of caffeine. Caffeine is considered one of the most widely consumed drugs around the world.What are the symptoms of caffeine intoxication? ›
- Breathing trouble.
- Changes in alertness.
- Agitation, confusion, hallucinations.
- Convulsions (seizures)
- Increased thirst.
Aside from that jittery leg, there are other signs of too much caffeine. They range from relatively mild symptoms like sweating and restlessness to uncomfortable symptoms like nausea, diarrhea and anxiety. The good news is that most of these symptoms, unpleasant as they are, won't endanger your life.