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Science

Death by Coffee? 628

Clif Griffin writes "Slashdots question of the year, are you ready for this? No? Too bad, you'll hear me anyways. Will drinking 100 cups of coffee (the good kind, not that crappy decaf mocalatte crap) in 24 hours kill a person? Sure, there is one way we can find out but we can't let myself die under mysterious circumstances."
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Death by Coffee?

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  • by Lord Grey ( 463613 ) * on Thursday April 01, 2004 @10:03AM (#8735883)
    No.
    • Re:The Long Answer (Score:5, Insightful)

      by endfire ( 527523 ) <diegointheweb@@@googlemail...com> on Thursday April 01, 2004 @10:05AM (#8735902) Homepage
      100 glasses (~20 litres) of water would. Can't see how coffee would make it any better (or worse).
      • Re:The Long Answer (Score:4, Interesting)

        by moranar ( 632206 ) on Thursday April 01, 2004 @10:11AM (#8735970) Homepage Journal

        I once read a story by a Conan Doyle (do not know if it was Arthur or a relative) in which reference was made to a French torture that consisted in forcing the victim to drink (gulp actually, they used a funnel) great quantities of water until they confessed or died. Anybody can confirm this?

        • Re:The Long Answer (Score:2, Informative)

          by mirko ( 198274 )
          Yes, it was one of the favourite inquisitors' recipe, so it is not a French specialty.
          It's well demonstrated in the movie "Francois Premier [imdb.com]".
        • Re:The Long Answer (Score:3, Insightful)

          by moranar ( 632206 )

          ... And Google [google.com] is my friend, yes. It was called the "water cure" or "extraordinary torment". Thirty pints of water forcibly administered to the victim.

        • Re:The Long Answer (Score:5, Informative)

          by NickFitz ( 5849 ) <slashdot.nickfitz@co@uk> on Thursday April 01, 2004 @10:28AM (#8736182) Homepage

          A Google for water torture "Conan Doyle" gives The Leather Funnel [eastoftheweb.com] by Sir Arthur Conan Doyle as fourth result, which must be the story you read..

          A Google for water torture inquisition will then give you more details than you probably wanted (once you get past the pr0n).

          Now, what was I doing...?

          • This is a great site http://www.gutenberg.net/ for finding classic literature.

            The Leather Funnel

            My friend, Lionel Dacre, lived in the Avenue de Wagram, Paris.
            His house was that small one, with the iron railings and grass
            plot in front of it, on the left-hand side as you pass down from
            the Arc de Triomphe. I fancy that it had been there long before
            the avenue was constructed, for the grey tiles were stained with
            lichens, and the walls were mildewed and discoloured with age. It
            looked a small house from the st
      • by Anonymous Coward
        What if it was beer?
      • Re:The Long Answer (Score:5, Informative)

        by LordKronos ( 470910 ) on Thursday April 01, 2004 @10:18AM (#8736060)
        To elaborate slightly on the parent poster, the condition is called Hyponatremia. Essentially, it's the opposite of dehydration. Too much water decreases electrolyte concentration. So the important factor is, does coffee contain electrolytes? I suspect the answer is no.
        • Re:The Long Answer (Score:5, Informative)

          by Sique ( 173459 ) on Thursday April 01, 2004 @10:25AM (#8736158) Homepage
          Coffee contains electrolytes, and far too much. By drinking coffee you actually dehydrate your body, because the coffee has a higher electrolyte concentration than your body. This is one of the reasons behind the tradition to be served with a glass of water together with an espresso in an italian restaurant.
          • Re:The Long Answer (Score:5, Informative)

            by rgmoore ( 133276 ) * <glandauer@charter.net> on Thursday April 01, 2004 @10:43AM (#8736347) Homepage

            No, coffee isn't dehydrating because it contains too many electrolytes. It's dehydrating because caffeine is a diuretic, i.e. a drug that induces urination. In any case, though, the comment about serving with a glass of water points out something important- that you can theoretically overcome issues with overhydration/dehydration/mineral depletion/etc. by drinking something else or taking electrolytes at over the same time period that you're taking the coffee, negating its negative effects (other than the potential caffeine toxicity).

            • Re:The Long Answer (Score:4, Informative)

              by jimsum ( 587942 ) on Thursday April 01, 2004 @10:56AM (#8736481)
              In the case of coffee, you don't really have to drink anything else. The diuretic effect of coffee only eliminates about half the water. In other words a cup of coffee is about equivalent to half a cup of water.
            • Re:The Long Answer (Score:3, Informative)

              by aug24 ( 38229 )
              AIUI, recent findings show that even though caffeine is a diuretic, it's such a weak one that you gain more water in a normal tea/coffee than you lose. It's only espressos that are actually dehydrating.

              IIRC, as a result the National Health Service here in Britain recently changed decades-old advice and now allows people to have tea after operations. Any medics here confirm that?

              J.

          • by asylum ( 147434 ) on Thursday April 01, 2004 @11:08AM (#8736590)
            Caffiene is a very mild diuretic. Coffee is 99.x% water. The net effect is very similar to drinking water.

            Check out this debunking page [ific.org].

            An excerpt (for the lazy):
            "Lawrence E. Armstrong, a professor of exercise and environmental physiology at the University of Connecticut, found that caffeine is not the dehydrating demon some people believe. In fact, he concluded that caffeine is no more a diuretic than water."
          • Re:The Long Answer (Score:3, Informative)

            by the idoru ( 125059 )
            it's been mentioned, but i'll elaborate.

            yes, caffeine is a diuretic. meaning that it directly affects your kidneys in a manner that increases their urine production. in addition, though, caffeine is a vasoconstrictor. so it causes the overall volume of your cardiovascular system to decrease, which increases blood pressure, which increases urine production. in addition, that vasoconstriction also affects the smooth muscle lining your bladder, causing its tone to increase. thus, its volume capacity to h
          • Re:The Long Answer (Score:3, Insightful)

            by Kopretinka ( 97408 )
            Well I thought the glass of water was to freshen your breath and clean up your mouth, not because they care about the electrolyte concentration which a cup of coffee cannot hurt much.
        • Hyponatremia (Score:5, Interesting)

          by The Grassy Knoll ( 112931 ) on Thursday April 01, 2004 @10:50AM (#8736435)

          Indeed.

          A British girl Leah Betts died from Hyponatremia a few years ago. The official story, and the way it was hysterically presented in the press, was that she died from taking a single Ecstasy pill, whereas actually she basically drank so much water her brain swelled up and killed her.

          Even sadder, most people still believe she was killed by Ecstacy...

          Never let the facts get in the way of a good anti-drug hysteria whuppin' up. Remember the people on acid supposedly jumping out of windows in the '60s?

          • Re:Hyponatremia (Score:3, Informative)

            by xstein ( 578798 )
            Actually, hyponatremia can be a direct result of ecstasy use. [thedea.org]

            One of the effects of ecstasy is that the user may lose the ability to monitor and control water levels in the body--so simply put, they do not know how much water they have or need. As a result, the two most prevalent causes of death as a result of ecstasy usage are heatstroke (severe overheating, and not enough water) and drinking too much (hyponatremia).
            • Re:Hyponatremia (Score:3, Insightful)

              by MarcQuadra ( 129430 ) *
              And idiots wrap their cars around trees too. Ecstasy can be quite benign if done in moderation and with a good head on your shoulders. None of the 'dangerous' illegal drugs out there seem so bad if you know how to handle yourself.
          • Re:Hyponatremia (Score:4, Interesting)

            by lawrencekhoo ( 108310 ) on Thursday April 01, 2004 @11:30AM (#8736831) Homepage
            Remember the people on acid supposedly jumping out of windows in the '60s?

            It does happen. I had a close friend from college who jumped off the roof of a 4 storey building after tripping for a week.

            He landed feet first, and so survived. But it took him a year to walk again.
          • Re:Hyponatremia (Score:3, Insightful)


            If Leah Betts hadn't been on Ecstacy, she wouldn't have taken the foolish action of overdosing on water, would she?

            This was as much a drug-related death as a drunk driver who rams a telephone pole, or a junkie who gets shot to death trying to break into someone's home. Media coverage of drug use may be somewhat more hysterical than it needs to be, but I'd rather have people think illicit drugs are more dangerous than they actually are than to have them think that a substance cooked up in some stranger's k
        • Too much water decreases electrolyte concentration.

          So what if you drank Gatorade (or another well made sports drink), which has an electolyte balance designed to match the body's?
        • Drinking a ton of water will get you drunk! I hear all the kool kids do it these days.

          Coffee doesn't contain electrolytes? Heh.
    • by ospirata ( 565063 ) on Thursday April 01, 2004 @10:12AM (#8735991)

      Its not coffee itself that kills, but the plastic cup that reacts with the coffee, and generates an acid called tri-hidro-cafeine, that is lethal.

      Here [getfound.com] is the complete story.
    • by Anonymous Coward on Thursday April 01, 2004 @10:23AM (#8736128)
      No.
      Hey everyone! Look! I found our missing poll option!
    • by AndroidCat ( 229562 ) on Thursday April 01, 2004 @10:30AM (#8736198) Homepage
      Actually it will kill anyone. However, since the body takes several days to stop moving, it's hard to tell. I died several years ago, but a few pots of coffee a day keeps me active. (I do tend to shuffle like a zombie to the coffee maker in the morning.)
      • Well, here's what I got [erowid.org] when I Googled for "Caffeine lethal dose".

        I just cannot believe some people were sick enough to inject this into defenseless animals for the only sake of evaluating how much they'd take before dying.
    • Futurama HO!!! (Score:4, Informative)

      by Lotharjade ( 750874 ) on Thursday April 01, 2004 @12:16PM (#8737394) Homepage Journal
      NO, 100 cups of coffee according to the show Futurama (episode: three hundred big boys) will actually set you in a super hightened and mobile state where you move at super human speed and awareness. Thus you can save people.

      "I think we were just saved by an orange Blur!!!"

      I wish they would bring that show back. :(
  • Ummmmm...... (Score:5, Insightful)

    by BWJones ( 18351 ) * on Thursday April 01, 2004 @10:03AM (#8735885) Homepage Journal
    (Disclaimer): There are days when I consume a pot or so of coffee for myself, so I am not saying this out of any prejudice. However, the thing to remember is that there *are* pharmacologically active compounds in coffee, in particular caffeine. The effects of caffeine really depend upon the person and how well their liver enzymes are induced to take care of compounds like this, but 100 cups could be enough to give you anxiety, sweats, tremors dizzyness, GI cramping, dehydration (caffeine is a diuretic), and at higher (toxic) doses even heart arrhythmias, nausea and vomiting, symptoms of CNS toxicity involving ringing ears or damped sounds and flashing light and possibly convulsions. So, can it kill you? Possibly. So, my question to you is.......why would you want to drink 100 cups of coffee in a day? This isn't some dare or weird coffee enema garbage that someone is trying to foist on you is it?

    Oh, yea. IAAS. (I am a scientist).

    • Quitting coffee... (Score:5, Interesting)

      by turnstyle ( 588788 ) on Thursday April 01, 2004 @10:08AM (#8735941) Homepage
      I'm a pot-a-day drinker too, but every so often I like to quit for a little while (I don't much like the idea that I'm physically addicted).

      When I quit, I reduce my intake by halves -- in other works, today a pot, tomorrow half a pot, and so on, until it's just a sip, and then nothing.

      That makes it fairly painless to shake the monkey (no headaches).

      And then it's extra fun to drink that next pot a few weeks later... ;)

    • by gooberguy ( 453295 ) <gooberguy@gmail.com> on Thursday April 01, 2004 @10:10AM (#8735962)
      You might want to look at the date. (Hint: It's not March anymore.)
    • I so sorry about your loss.

      I cannot help with your coffee drinking problem, but oh Holy Day! I have been the pleasure of telling you that there is most definitely good news for you today sir!

      I am Abdul Shakalakabangbang, from New Timur. Our Prime Minister, may his soul flatulate freely in heaven, was tragically killed in a mushroom stuffing contest. Since I his trusted most aide, he leave me lots of money. Due to political unrest, and a bad case of hemorroids, I am needing to remove this money from the c
    • pharmacologically active compounds in coffee

      True. Among them, the most hazardous is DHMO [slashdot.org]
  • by The I Shing ( 700142 ) * on Thursday April 01, 2004 @10:03AM (#8735886) Journal
    Well, if drinking a hundred cups of coffee in twenty-four hours doesn't kill you, it'll certainly give you a wicked case of the runs.

    Kind of like on the "Bambi" episode of The Young Ones back in the 80s, when Rick tries to kill himself by overdosing on a bottle of pills he's just found in the medicine cabinet.

    "Vyv, Vyv, uh, can you, like, really kill yourself with laxative pills?" Neil asks his other housemate, Vyvyan, who replies, "I don't know, Neil, but I'm going to stay and find out."
    • by Ateryx ( 682778 ) on Thursday April 01, 2004 @10:23AM (#8736127)
      This sound like the Futurama Episode (specifically Episode 67) where everyone gets $300 back from the government and Fry decides to spend all his money on 100 cups of coffee.

      At 100 cups, Fry finds some inner mind power new age shit, and ends up saving everyone from a fire because time basically slows for him and he can bring everyone out of the burning building. Overall a pretty good episode.

  • Fun with Numbers (Score:5, Informative)

    by Liselle ( 684663 ) * <slashdot@lisWELTYelle.net minus author> on Thursday April 01, 2004 @10:03AM (#8735889) Journal
    About ten grams of caffeine in a short period of time will kill you. There is about 100mg in your average cup of coffee (though it can vary wildly). So the math is right, but you'd have to suck down all one-hundred in a short period of time to get a fatal amount of it. Too much liquid, I think, you just can't process it that fast. All that would happen is you'd probably be urinating like a racehorse (caffeine is a diuretic), and and have a really bad headache to show for it at the end of the day.

    Over the course of 24 hours, a lot of the effect would probably be mitigated by the time span. I don't know how long it would take you to get the caffeine out of your system, maybe someone else does. Google says around 13% of the caffeine in your body is removed every hour, but I haven't a clue how correct it is. Sounds dubious. ;)
    • Re:Fun with Numbers (Score:3, Informative)

      by The Fun Guy ( 21791 )
      The half life of caffeine in pretty variable. Nicotine helps you to process caffeine more quickly, but sugar delays the breakdown. Women generally process caffeine more quickly than men, unless they happen to be pregnant, in which case the caffeine buzz hangs around a lot longer. If you knocked back all 100 cups right in a row, the caffeine toxicity might or might not kill you, depending on what your tolerance is to begin with; taken over the course of a day, you'll probably just get sick and severly dehydr
  • by grub ( 11606 ) <slashdot@grub.net> on Thursday April 01, 2004 @10:03AM (#8735891) Homepage Journal

    Spread out over 24 hours? Hmm.. that's 4.167 cups/hour.

    If you were wise and countered the stimulant effect with the soothing liquid-love that is Guinness [guinness.ie] every half hour you should be in fine shape. Can't say the same about your digestive system the next day (read: "100 coffee + 48 Guinness == SplatterBum(tm)") but you'll be around to enjoy it.

    disclaimer i: I'm not an MD or biologist, however I drink with the ones from work quite often.
    disclaimer ii: (for your family) if he follows these directions and dies, my name is Rob Malda.
    • Spread out over 24 hours? Hmm.. that's 4.167 cups/hour.

      Your math assumes that he would be drinking the same amount every hour. How do you expect him to stay up and drink during those night time hours?
  • by a.deity ( 665042 ) on Thursday April 01, 2004 @10:03AM (#8735893) Homepage
    No, but it'll let you save all your friends from a fire.
    • I'd try it just to have the 'coffe-counter-o'matic' appear with a 'ding' every time I drank a cup...
    • Mod parent up! (Score:3, Informative)

      by Big Nothing ( 229456 )
      The reference is from episode #67, "Three hundred Big Boys":

      A news reel reveals that Zapp Branigan has overthrown a planet of arachnids and as a result, Earth President Nixon is rewarding the entire population of the planet a $300 "fun bill."

      The rest of the episode consists of vignettes of how the Planet Express gang (and Kif) utilize their refund. Fry buys 100 cups of coffee; Leela has a unique encounter with a whale; Bender buys theft tools to steal the world's most expensive cigar; Professor Farnsworth
  • Look it up.. (Score:5, Informative)

    by Karamchand ( 607798 ) on Thursday April 01, 2004 @10:04AM (#8735897)
    ..in the alt.suicide.holiday Methods FAQ [google.com] and have fun.
  • by GarbanzoBean ( 695162 ) on Thursday April 01, 2004 @10:05AM (#8735908)
    I bet 500 Euro (your car is on the way) on you dying http://rcm-medicine.upr.clu.edu/publications/sidne y_kaye/toxicology-of-caffeine.htm
  • I'd Say... (Score:3, Funny)

    by Greyfox ( 87712 ) on Thursday April 01, 2004 @10:06AM (#8735921) Homepage Journal
    I've drunk 100 cups of coffee this year and I'm doing fine.

    Oh, you mean all at once?

  • by w3weasel ( 656289 ) on Thursday April 01, 2004 @10:06AM (#8735922) Homepage
    He beautifully illustrated the results of 100 cups of coffee in one day in one of my favorite futurama episodes.
    The result is total awareness, inner bliss, and superman-like physical abilities

    GO FOR IT DUDE!

  • by account_deleted ( 4530225 ) on Thursday April 01, 2004 @10:06AM (#8735923)
    Comment removed based on user account deletion
  • Lethal Dose (Score:2, Informative)

    by solidox ( 650158 )
    IIRC the lethal caffeine dose is 10g oraly and 3.2g intravenously.
    a cup of coffee contains ~80-120mg of caffine, so 100cups of coffee could well kill you...
    if you drank them all simultaniously.
    one after another... you'll just feel REALLY shit.
  • by drrobin_ ( 131741 ) on Thursday April 01, 2004 @10:07AM (#8735927)
    Back in my younger, experimentalist phase, I tried taking a lot of caffeine pills. I had 13, which is about 20 or 30 cups of coffee. It was an overdose.

    For about an hour I had a huge, ever-increasing buzz. Then it became difficult to walk. Then I started to throw up. I was vomiting for about 10 hours straight.

    Unless you want to go through the same hell that I did, lay off the massive coffee dose.
  • and my blood pressure went up to 156/106, which is quite bad, so i am now on a strict diet... so maybe, long term....
  • LD50 (Score:3, Informative)

    by guibaby ( 192136 ) on Thursday April 01, 2004 @10:07AM (#8735931)
    The LD50 for caffeine is estimated at 150 mg/kg body weight
    or approximately 10 grams for the averaged size human. There is about 125 mg in 1 cup of coffee, which is about 12.5g/100 cups. So yes, there is little over a 50% chance it could kill you.
  • I predict you'll be urinating a lot, often, and that your urine will smell of coffee.
  • by Anonymous Coward
    ...Sounds like a job for MythBusters!
  • Depends on how big the cups are. If they're dixie cups or thimbles, I think you'll be ok. If they're 64-ounce Super-Big-Gulps then I think you'll probably change your body chemistry from 75% water to 75% coffee. But you'd get lots of work done before you die.
  • Surely that much water in 24 hours would fuck you up pretty bad?
  • by Sneakums ( 2534 ) on Thursday April 01, 2004 @10:10AM (#8735964)
    What a joy is it to see the gene pool skim itself.
  • I think that amounts to about 5 gallons of liquid. Regardless of whether the caffeine kills you, I suspect drinking that much liquid in 24h may be dangerous in and of itself.
  • by Futurepower(R) ( 558542 ) on Thursday April 01, 2004 @10:12AM (#8735986) Homepage

    Caffeine, like all alkaloids, is bug poison. Alkaloids were invented by tropical plants to discourage bugs from eating.

    Alkaloids are people poison, too, of course, but a bigger dose is required.
  • by Molina the Bofh ( 99621 ) on Thursday April 01, 2004 @10:12AM (#8735988) Homepage
    It's surprising one can even survive to 10 cups of coffee, when most coffee is contaminated with DHMO.

    For those who are not aware of the dangers of this substance, dihydrogen monoxide is colorless, odorless, tasteless, and kills uncounted thousands of people every year. Most of these deaths are caused by accidental inhalation of DHMO.
    Prolonged exposure to its solid form causes severe tissue damage. Exposition to it gaseous form may cause burns, permanent scars and even death.

    Symptoms of DHMO ingestion include sweating and urination, and possibly a bloated feeling, nausea, vomiting and body electrolyte imbalance.
    For those who have become dependent, DHMO withdrawal means certain death.
    Dihydrogen monoxide is also known as hydroxyl acid, and is the major component of acid rain. It has been found that malignant cancer cells only develop in its presence.

    The American government has refused to ban the production, distribution, or use of this damaging chemical due to its "importance to the economic health of this nation.". It's commonly used as an industrial solvent and coolant, as a fire retardant, in the distribution of pesticides, in abortion clinics,and lots more.

    I created a community against DHMO in Orkut [orkut.com]. You're all invited to join it.

    You can also check the official Dihydrogen Monoxide FAQ [dhmo.org]
  • by sporty ( 27564 ) on Thursday April 01, 2004 @10:13AM (#8736000) Homepage
    Of course it can kill you. But it requires freezing it into an icicle first.
  • So, when you say "100 cups of coffee", is that in total, or per personality? I think the nurse may have doubled your dosage this morning if you are worrying about this anyway, maybe you should start a class action lawsuit instead - you should be good for two signatures at least!
  • I wonder if it would worked if you crammed like 3 tins of penguins in your mouth all at once (without tin of course! :D) and then started to crunch!
  • by account_deleted ( 4530225 ) on Thursday April 01, 2004 @10:16AM (#8736034)
    Comment removed based on user account deletion
  • Easy one: Maybe! (Score:4, Informative)

    by k98sven ( 324383 ) on Thursday April 01, 2004 @10:17AM (#8736050) Journal
    A cup of coffee has about 150 mg of caffeine in it.
    Hence, 100 cups of coffee is about 10-15 grams of pure caffeine.

    The lethal dose varies.. different people react diffferently. That's why there are LD50's.. which is the value which statistically kills half the subjects. (or, you could view that as a 50%/50% chance)

    The LD50 for caffeine in rats (orally) is 192 mg/(kg body mass)..

    A typical male human weighs about 80 kg.. 15 grams of caffeine divided by that is 187 mg/kg.

    So, yes that amount of caffine can definitely kill someone. I wouldn't take my chances.
  • I remeber when I got word that the Chem. dept. had a surplus a various chemicals they were looking to get rid of. I went to their webpage (which listed the chemicals and quantities and resquest the following from the surplus:

    100 grams Caffine
    1 pound Hydroflouric acid (non-aqueus)
    some nitric acid
    etc, etc

    Everything was going fine until I told them to deliver the chemicals to my dorm room. It seems they didn't like that for some reason.
    So I never did get my 100 grams of pure caffine. I could've had
  • Mysterious? (Score:2, Funny)

    by jkubecki ( 26300 )
    Considering you just posted on a high-traffic web site that you're going to drink 100 cups of coffee, if it did kill you, your death wouldn't be so mysterious.
    So I say, Go for it. If you die, we'll let folks know.
  • 27 cups has been proven to be safe...

    2001 Coffee-Thon [archive.org]

    -Rick

  • ...you should see this [geocities.com] episode of Futurama. Fry gets a tax rebate from dead Nixon and resolves to drink 100 cups of coffee....

    And then something happens....
  • I actually drank over 100 cups of coffee inside of a 24-hour period once (long convoluted reason omitted). I was high to the rafters, got a splitting headache, and crashed for two days after I did it, but needless to say, I survived the incident.

    So, no. It won't kill you.
  • ...you'd be pissing your life away.
  • A news story in the late 70s or early 80s about a girl that died of a caffeine overdose. She had taken No-Doz or Vivarin, and the authorities said it was the equivalent of drinking 200 cups of coffee in an hour.

    That said, drinking 100 cups of coffee in a 24 hour period will cause some discomfort. When I was younger, I drank two pots of coffee in a day, and wound up going to the infirmary the next day with dehydration.

  • enema! (Score:2, Funny)

    by capsteve ( 4595 ) *
    i think you should try drinking the coffee and squirting it up your ass at the same time. this way you can "ingest" the coffee at twice the rate you would if you just drank it. all those capillaries in your bowels will soak up the caffine lickity split.

    maybe you can also experiment to see how many cups of Decaf you have to drink in order to kill yourself.

    Quick! do it fast!
  • Coat your entire body with these [thinkgeek.com] ;)

    OT. I hope everyone has seen the rest of the AF items at Think Geek [thinkgeek.com] too. If not, check it out!! [thinkgeek.com]
  • by deacon ( 40533 ) on Thursday April 01, 2004 @10:28AM (#8736183) Journal
    A google search for caffine msds [ox.ac.uk] gives a ORL-HMN LDLO 192 mg/kg.

    That means the lowest lethal dose reported in the literature was 192 mg of caffine per 1 kilogram of weight of the victim. I'll let someone else look up plausible values of caffine content in coffee.

    It is certainly possible to kill yourself with caffine, you just need enough of it.

    I found a link [coffeefaq.com] for content of the beans, the values are around 1.3 %. So 100 grams of beans contains 1.3 grams of caffine, or 1300 mg.

    Eating 100 g of beans is well over the limit, assuming any of my math is right :)

  • Of course (Score:3, Insightful)

    by Quill_28 ( 553921 ) on Thursday April 01, 2004 @10:39AM (#8736297) Journal
    Almost everything is a poison in large enough doses to living things.(Water to a fish would be an exception)

    Granted it would take a large amount of water or coffee to kill someone, but if taken enough it would kill you.
  • by linuxwrangler ( 582055 ) on Thursday April 01, 2004 @10:52AM (#8736449)
    The description of seasickness is that at first you are afraid that you're going to die...then you are afraid that you won't. I had a similar experience with coffee.

    I used to work mostly in the field but was in the office on a chilly day working on some new equipment. I had learned that my coworkers, who loved coffee, hadn't had chocolate covered coffee beans. I brought in 1/4 pound. They each tried one bean.

    This left me absent-mindedly munching them and pouring repeated cups of coffee. I ended up eating the whole box and drinking over a pot of coffee.

    By quitting time I was quite sick and facing a commute across the SF-Oakland bay bridge. I found a box and lined it with a bag in case I threw up and endured the commute - not fun when you are extremely hyper and sick.

    I got home and just wanted to curl up in bed but every time I tried I was way too jumpy and had to get up again. My heart was pounding so hard and fast that it scared me.

    My recommendation: don't do it - it is really, really unpleasant.

    Further reading: the caffeine material safety data sheet [ox.ac.uk]

  • by Roadkills-R-Us ( 122219 ) on Thursday April 01, 2004 @11:15AM (#8736655) Homepage
    When I was working 80 - 100 hour weeks for months on end (averaging 4 hours of sleep a night), caffeine was a requirement to function. I got to the point I was drinking 4 pots a day - 40 cups. After a couple of *years* of this, my body was so dependent on caffeine that when I went on vacation and cut my coffee dosage to 2 cups a day, I literally couldn't even take a dump.

    But it wasn't anywhere close to killing me, as far as I can tell, unless you count exploding in a nasty, stinking mess had I gone cold turkey from coffee.

    And no, this is not an April Fools joke!
  • by ttyp0 ( 33384 ) on Thursday April 01, 2004 @12:19PM (#8737467) Homepage
    No deaths have ever been reported as direct effect of smoking too much dope. I imagine this is because it's physically impossible to continually smoke enough in succession to reach a lethal level. At some point in your quest you'll either stop caring (too lazy) or just pass out. As with coffee, at some point you will get too sick to continue ingesting enough caffeine to reach a lethal level.
  • by aug24 ( 38229 ) on Thursday April 01, 2004 @01:16PM (#8738093) Homepage
    I used to love coffee. I drank espresso by the mug. My old landlady once asked me about it while we were watching a program on coffee addicts. After doing the maths they had just explained on the telly, I discovered I was drinking the equivalent of 56 cups/day. She asked if I had any side effects, and I thought about it and said "no... except I fall asleep in 15 minutes if I stop".

    These days I drink a few small pots of tea.

    Once, for a laugh, I ate two bags of chocolate covered coffee beans out of a bowl with a spoon and then went down the pub. I had a killer evening, really fast and witty (everyone thought I was on speed) followed by a night full of shivers and shakes and just wanting to stop being awake, but not being able to.

    Worth doing the once ;-)

    For the record, I've also tried a cup of coffee on the half hour every half hour. Took me till lunch to get really weirded out and unhappy. Finally I've tried (with instant) making a saturated solution and drinking it. Not good either.

    J.
  • Oh, Goodness Yes (Score:3, Informative)

    by spoonboy42 ( 146048 ) on Thursday April 01, 2004 @01:38PM (#8738363)
    The LD50 (the dosage at which 50% of human beings will experience a fatal overdose of a substance) of caffiene is about 10 g for oral administration (intravenously, amounts as low as 3.2 g have caused death). A cup of coffee has about 120-170 mg of caffiene. So, 100 cups would easily put you above the LD50 (at 12-17 g), although your body attempting to purge the caffiene (via uncontrollable urination and vomiting, both of which will certainly occur at the doses mentioned) will mitigate the dosage somewhat.

    It is worth noting that caffiene, like cocaine, is a dopamine reuptake inhibitor. Once you pass an amount as little as 250 mg (depending on your weight) you will begin to feel the effects of caffiene intoxication, which include a very reduced sensitivity to pain, and eventually a feeling of intense, vibrant physical energy. As dosage increases however, psychological effects such as paranoia and anxiety are common, and panic attacks are often induced (it's happened to me). Keep going, and you will manifest serious cardiovascular effects, including heart arythmia and fibrilation. A myocardial infarction (heart attack) can be induced, particularly in individuals prone to heart disease. Such cardiovascular effects are likely to cause physical incapacitation before you can drink your way to the LD50, but if you figure out a way to maintain your rate of ingestion then yes, you will very likely die.
  • Yes (Score:3, Interesting)

    by DynaSoar ( 714234 ) * on Thursday April 01, 2004 @02:47PM (#8739443) Journal
    "Will drinking 100 cups of coffee (the good kind, not that crappy decaf mocalatte crap) in 24 hours kill a person?"

    Yes, it will. 6 gallons of water in 24 hours will cause water intoxication (hyponatremia). That's when the ion content of your body becomes too low for neural activity to be maintained. About half that amount has been known to cause coma (http://www.abc.net.au/dimensions/dimensions_healt h/Transcripts/s871112.htm).

    An athelete drank that much and survived probably only because he was an athelete. (http://www.wonderquest.com/water-intox.htm)

    There have been at least 2 deaths caused by a person drinking too much water (http://www.urban75.com/Drugs/drugxtc1.html ; http://www.pressrepublican.com/Archive/2004/02_200 4/022120045.htm), and one child abuse/murder (http://deseretnews.com/dn/view/0,1249,455030824,0 0.html) caused by force feeding water.

    People don't need to drink near as much water as they're usually told. Common "wisdom" says to drink half a gallon a day. That's wrong. You need 1 milliliter of water for every calorie of food. That *is* two liters for a 2Kcal diet. But all the food we eat is in large part water. The USDA recommendations are quite clear on including that. Unfortunately nobody reads them.

    Yes, I do know what day this is. This is the answer anyway.

  • This seems straightforward:
    Too much caffeine can lead to caffeine intoxication. The symptoms of this disorder are restlessness, nervousness, excitement, insomnia, flushed face, diuresis, and gastrointestial complaints. They can occur in some people after as little as 250 mg/d. More than 1 g/d may result in muscle twitching, rambling flow of thought and speech, cardiac arrhythmia, and psychomotor agitation. Caffeine intoxication can lead to symptoms similar to panic disorder and generalized anxiety disorder. The LD50 is estimated to be about 192 mg/kg of body mass, or about 72 cups of coffee for an average adult.
    So it would appear at 100 cups, you would stand a good chance of checking out. Caffeine From Wikipedia [wikipedia.org]

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