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3 Cups of Coffee Increases Hallucinations

PearsSoap writes "The Telegraph and other sources are pointing out a study on 200 students which has found that a high caffeine intake can cause visual and auditory hallucinations, and can make people think that others are 'out to get them.' The abstract (and full version if you have access) is available. 'The volunteers were questioned about their caffeine intake from products including coffee, tea, energy drinks, chocolate bars and caffeine tablets.'"

8 of 628 comments (clear)

  1. Re:60 cups by evanbd · · Score: 5, Interesting

    For the most part, LSD doesn't cause true hallucinations -- it distorts things. You'll see the wood grain on your desk flowing, or the tree waving at you... but you won't see a pink unicorn in the room next to you that doesn't correspond to some vaguely similar object that's actually there. Take a high enough dose, and the level of distortion gets high enough that it's hard to figure out whether that's still the case. But at the 1 dose level, the vast majority of people don't experience true hallucinations -- and it sounds like they're suggesting that with caffeine, that's not true.

  2. Re:So by Hoi+Polloi · · Score: 4, Interesting

    There is a big difference between feeling anxious and hallucinating. I'm just surprised it took only 3 cups.

    --
    It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
  3. Re:Wow, bad reporting or bad science? by berend+botje · · Score: 4, Interesting

    lack of sleep will case hallucinations.

    And severe paranoia, as well. Once I been up and about for just over 70 hours and that is _not_ healthy. Slept for 17 hours after that. Never going to that again, it was living hell.

  4. Try mixing it with real psych problems! by crazycheetah · · Score: 4, Interesting

    First of all, I thought we knew this already? O.o

    Second, it's more fun if you have a pre-existing psychiatric condition. Personally, it has some nice effects on my PTSD. On the one end, it can help with the numbness and similar symptoms, because I get amped up and happy if I drink enough of it. On the other end, holy shit does the hypervigilance, irritability, and other such symptoms get worse with enough caffeine. Of course, that's really noticeable when you're drinking 3-4 16oz energy drinks every single day, like I used to before I started to realise the extent of my problem. Even down to only one cup of coffee every day, I still don't get any more sleep though, so whatever.

    Can't say I've experienced the hallucinations so much, though. But I can only imagine someone with schizophrenia or other disorders causing hallucinations (well, you could try to get away with saying PTSD has hallucinations as they are similar, but there's actually distinct differences between flashback type things of PTSD and hallucinations) drinking a lot of caffeine. Mix it with weed and it's even more fun! I could also say meth, cocaine, and some others, but that sounds like a heart attack waiting to happen, and they can cause hallucinations themselves anyway; and no I'm not kidding--working in an emergency room, I've seen my fair share of heart attacks where the only reasonable explanation was meth/cocaine use.

    Nonetheless, I'd be more concerned about ulcers and other problems, like heart problems, that can come with heavy caffeine use. You can at least pass off a somewhat normal life, without ending up in the hospital for it, with the hallucinations, if you really try ;)

  5. Re:60 cups by TinBromide · · Score: 4, Interesting

    "The lowest known dose fatal to an adult has been 3,200 mg - administered intravenously by accident. The fatal oral dose is in excess of 5,000 mg - the equivalent of 40 strong cups of coffee taken in a very short space of time. "

    source

    But its on the internet, so its gotta be true! Right?!?! Take it with a grain of salt and a cup o' joe.

    --
    Is it sad that I am more likely to recognize you and your posts by your sig than your name or UID?
  6. Visual and Auditory Hallucinations may vary by WillAffleckUW · · Score: 4, Interesting

    Some of the medical genetics studies I work on have measures for those, and having seen the questions and coded them, I can affirm that they're not quite as reliable as you may think.

    Besides, every time I drink more than three cups of coffee, I get this visual hallucination that I'm being asked to work to hard and this auditory hallucination that my boss has an unreasonable deadline ...

    --
    -- Tigger warning: This post may contain tiggers! --
  7. Re:RTFA by crowtc · · Score: 5, Interesting

    I would tend to agree - I drink more coffee than that before 9am. I drink coffee all day long, even into the night. I have done so for more than 25 years with no hallucinations (as far as I can tell) or baseless paranoia.

    Once upon a morning a long time ago, at an ISP now long since defunct, I drank 4 espressos, 6 double cappuccinos and a full pot of my regular strong coffee. I also had a "coffee bean" candy bar in addition to a couple really rich chocolate eclairs. I actually got a nose bleed, but no hallucinations.

    OTOH: My sister and one of her friends once drank 3 cans (each) of Jolt cola, a 2L of Mountain Dew (each) and then split a few full 1lb bags of Plain Chocolate M&Ms. The hallucinated for at least an hour until they crashed - and hard. Probably needless to say: they both felt sick for a full day afterward.

    --
    -=- I tried going insane, and it was fun for a while, but I got bored and decided to go sane. -=-
  8. Be a patriot! Smoke and die for your country! by zooblethorpe · · Score: 4, Interesting

    You're being sarcastic, but several years ago I was living in Japan, and saw something awfully close to what you describe.

    The government in the US at the time was trying to figure out what to do with the settlement of the Big Tobacco lawsuit, and many states were putting together anti-smoking campaigns. I don't know if you've ever been to Japan, but folks there are big smokers.

    So some mid-level bureaucrat in the Ministry of Health and Welfare was interviewed on the evening news, and asked if the government in Japan would also be engaging in anti-smoking efforts. With a level of candour unthinkable on the other side of the pond, this fellow plainly stated that no, Japan's government would not, because smoking would help reduce the aging population and thereby limit the ultimate public expenditures required to care for a large elderly population.

    Japan. What else can I say. :)

    Cheers,

    --
    "What in the name of Fats Waller is that?"
    "A four-foot prune."