Why does coffee make me sleepy?

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Barbwyr

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« Reply #50 on: 08/03/2015 02:29:05 »
If I don't get enough sleep, shortly after drinking coffee I will get in a somnambulant haze.  I feel like I'm hypnotized and have no energy and feel very lethargic.  I recently read something about drinking coffee when your dehydrated can cause further dehydration which can lead to fatigue.  Since this usually happens to me first thing in the morning this might be the cause.

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Roz J

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« Reply #51 on: 10/03/2015 15:35:21 »
I'm always get this - in fact I dont know why I keep drinking the stuff, all it does is make me yawn. Though, if I'm honest, I wouldnt say it makes me sleepy, it just makes me yawn and makes my eyes water, which I misinterpret as sleepiness (though when I think about it I actually feel awake). Could it be that it redced oxygen intake, thus creating side effects that could be associated with sleepiness?

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Thieluar

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« Reply #52 on: 12/03/2015 14:23:41 »
Dammit, all articles I've read are about how coffee makes you sleepy way after drinking it.  My case is that it makes me sleepy almost immediately after drinking it.  Say ten to twenty minutes after I finish a cup of coffee.  I want to know why!

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DAW

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« Reply #53 on: 10/04/2015 10:46:53 »
Coffee makes me sleepy. It certainly does not wake me up, or give me a buzz. I never drank coffee until my thirties. Could it be that as it's high in magnesium, and magnesium relaxes muscles and aids sleep??? Perhaps for some, caffeine doesn't work but the magnesium effect does? Just a thought!

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Offline chris

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Re: Why does coffee make me sleepy?
« Reply #54 on: 18/04/2015 12:06:12 »
True
I never forget a face, but in your case I'll make an exception - Groucho Marx

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Offline chris

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Re: Why does coffee make me sleepy?
« Reply #55 on: 18/04/2015 12:07:49 »
True enough!
I never forget a face, but in your case I'll make an exception - Groucho Marx

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diamond

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« Reply #56 on: 19/04/2015 16:40:34 »
Lately I've been feeling sleepy 30 mins after drinking coffee.this is in the morning of course. I'm not sure what the reason could be, maybe the brand of coffee? Has anyone else experienced this

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Payton

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« Reply #57 on: 29/04/2015 21:55:14 »
I feel extremely tired as soon as I finish a energy drink, to the point of nodding out. But other times I am wired.

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Payton

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« Reply #58 on: 29/04/2015 21:55:58 »
I feel extremely tired as soon as I finish a energy drink, to the point of nodding out. But other times I am wired.

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Heather

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« Reply #59 on: 14/05/2015 03:12:07 »
I have been having the same problem for years.  Even a 1/4 cup of coffee was making me pee a lot and then my eyes would get so tired.  I finally figured out the problem.  The coffee has been dehydrating me.  Perhaps the same reason it can lower blood pressure because it is a diuretic.  I found that I am able to drink coffee now if I eat something salty with it, like olives, and drink plenty of water.

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westcoaster

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« Reply #60 on: 14/05/2015 21:38:21 »
I have one cup per day and start to feel drowsy before I am even finished the cup. And to think I used to drink coffee to stay awake while driving when I was young but never seemed to work for me!

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ishnoc

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« Reply #61 on: 02/06/2015 08:38:24 »
Relieved to know I'm not the only one!
I've always been wondering why everyone drinks coffee and gets a kick from it, whereas when I drink it I immediately get drowsy. Yawning, teary eyes and starts to nod off. This happens minutes after I start drinking the stuff. If I'm tired at the office drinking coffee is guaranteed to make me nod off. This does not happen with tea or other hot beverages.

I have a theory that this comes from long and boring classes at university where I used to sip up to 3 cups of coffe in class order to get throught the 3-4 hour classes we had, thus my body associates drinking coffe with boredom and sleepines, therefore making me drowsy.

Plausible?

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Packyman

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« Reply #62 on: 12/06/2015 14:43:17 »
My theory is that since caffeine is a diuretic and removes 2 cups of water from your body for every 1 cup consumed, the fatigue is caused by dehydration, at least in part (the ADD/ADHD connection seems bona fide, also). If you don't hydrate right away in the morning, considering you've not likely drank any fluids during your normal span of sleeping, you've gone that many hours straight with no fluid intake, which means you're likely dehydrated. Due to medication and a fast metabolism, I'm often dehydrated to some degree if I'm not regularly drinking water, and it makes me quite sleepy. Dehydration also causes constipation - another factor which can cause fatigue. I'm not a scientist or physician; I can only speak from my own experience. My suggestion: if you make your own coffee, drink a glass of water while you wait for the brew to finish. Hydrate first, then caffeinate. See if it helps.

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It makes me sleepy, too

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« Reply #63 on: 08/07/2015 12:34:07 »
I was coffee-dependant from the age of 8 (I started drinking it when I was 7) to the age of 15 when I cut it cold-turkey to see if it helped improve my insomnia. I can't remember if it did make much of a difference aside from messing me up for a couple weeks from withdrawal, but it's been over 2 years and my memory is crappy.
I never got back into it because after not drinking it for a year I found if I had a large cup it'd make my anxiety spike and give me headaches.
Once in a while, though, I do have about half a cup of coffee to try to wake myself up, but I have found that within 10 minutes of drinking it I actually feel MORE sleepy. (With my insomnia since I was young I always feel tired, but rarely sleepy. So it's odd for anything to make me feel like going to bed and passing out.)
My point is, I actually do feel sleepy very soon after having a glass of coffee.  

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Henry

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« Reply #64 on: 11/07/2015 02:08:43 »
Yes I'm one of these people, I googled this topic when sitting in an airport as I am now feeling moderately sleepy after drinking a coffee about 10 minuets earlier. To answer some other questions, I don't drink coffee often; maybe every couple of days but I can feel tired like immediately after, like go to sleep after

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gdawg

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« Reply #65 on: 21/07/2015 09:37:52 »
if I drink coffee anytime after 3pm i start to drift off almost instantly if im comfortable, i can drink it in the morning and wake me up but in the afternoon i need to sleep almost straight after drinking it

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Tatiana Khemet

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« Reply #66 on: 04/08/2015 07:06:32 »
I've never been much of a coffee drinker,  just cause I don't like the way it tastes, but I had some espresso beans in a cold drink recently and felt very tired and sleepy 15-20 minutes later, without any sort of spike im alertness as a result of the caffeine. This happens to my sister as well, is there a genetic explanation?

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Mysteryman

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« Reply #67 on: 08/09/2015 17:47:23 »
Whenever I drink a cup of coffee, I feel sleepy and relaxed for a few minutes (sometimes half an hour), but then I'm wired. I rarely have more than one cup a day, so I have no chemical dependency. I also do not get quite the same effect from hot tea.

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Cynthia

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« Reply #68 on: 09/09/2015 02:22:16 »
I always drink (caffeinated!) coffee in the evenings. I'm a 20 year old, very active female. Everyone I know seems to be mind boggled by the fact that I drink it as a bedtime snack. I always sleep very well.

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Girly

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« Reply #69 on: 09/09/2015 08:31:33 »
well this might surprise many of you but I immediately feel sleepy after drinking coffee or eating too much sugary foods and I must confess, it stresses me a lot. I have never heard of such a thing in my life. I was actually researching why I feel sleepy after drinking coffee when I came across this discussion. I need help!

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JonC

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« Reply #70 on: 23/09/2015 16:20:19 »
I have this problem on occasion. I thought that maybe it was my brain not being able to tell the difference between adenosine and caffeine to such an extent that the reaction usually triggered by adenosine was triggered by the caffeine. Of course, I have next to zero experience with research on neurotransmitters, so I'm pulling this out of the air.

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Mark Elder

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« Reply #71 on: 04/11/2015 02:35:41 »
I drink a widely varying amount of coffee each day. I would find that on days where I drank more coffee, I would actually feel more tired, but I never really thought about it - coffee is meant to have a wide range of positive health benefits, so I'd drink it anyway.

But lately, I've been cutting down - I didn't have any caffeine today until lunch time, when I had a large flat white. 10 minutes later, I'm yawning, wanting to put my head down, whereas I was fully alert beforehand, and that effect lasted at least two hours after I finished it. 3 hours later though, I was back to about the same level of alertness as I had been before I drank it.

Energy drinks don't seem to have the same effect, strangely enough. Perhaps there are other active compounds in the espresso that people usually ignore?

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Eli

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« Reply #72 on: 08/11/2015 18:40:28 »
Coffee has the complete opposite affect on me, I will fall asleep within 10 minutes, I would add half a packet of sweetner/none....

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Master

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« Reply #73 on: 01/12/2015 19:12:44 »
What a crappy article.
I get tired shortly after drinking coffie, but never after drinking caffinated soft drinks.
And I drink quite an amount of cola.

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britt

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« Reply #74 on: 07/12/2015 15:00:56 »
when I drink coffee as soon hit my system i start getting sleepy like i been drugged sometime i pass out before i ever finish my cup. i could be talking or out walking around I will pass out where ever

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Meg

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« Reply #75 on: 08/12/2015 15:38:52 »
I do get tired almost immediately after having coffee. I have adhd & have attributed it to that. What do you think? Hook me up to the brain thingy majigger!

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Thomas wyles

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« Reply #76 on: 10/12/2015 06:19:33 »
I too get very relaxed if I drink coffee at night. But if I drink it in the morning it does somewhat help me focus I wouldn't really say it wakes me up though.

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Mwestberg

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« Reply #77 on: 15/12/2015 07:00:37 »
This has also been my experience with coffee. Waking up at 4:00am  had become a regular problem. After a few months I finally gave in and said, what the heck, I may as well drink coffee and enjoy the time awake. And strangely I fell asleep about an hour later and had the best sleep ever. Now when I can't sleep I make a fresh pot of coffee and then fall asleep for hours.

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Diana Saliu

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« Reply #78 on: 19/12/2015 07:56:50 »
I'll wake up around 8 have my coffee and head back to bed. I don't feel the effects of coffee.

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Diana Saliu

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« Reply #79 on: 19/12/2015 07:58:08 »
I'll wake up around 8 have my coffee and head back to bed. I don't feel the effects of coffee.

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Jeff Schoff

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« Reply #80 on: 21/12/2015 18:35:19 »
I can drink a pot of coffee, drink 2 extra strength energy drinks & IMEDIATELY fall asleep !! NOTHING WORKS !!! I'm sooooo tired of being tired all the time... Rarely do I ever feel 100% awake...

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damien

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« Reply #81 on: 13/01/2016 05:30:35 »
Just Googled this page as I am sick of feeling very sleepy within 20 minutes of having a strong black coffee. I've not even eaten yet today, so it's strange. Anyhow, I've found nothing on the internet to explain this phenomenon so I'm going to take a nap.

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kelly

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« Reply #82 on: 18/01/2016 13:19:55 »
I dont drink coffee but when i do it males me sleep like a baby. Any exsplinatiom for this??

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Kerry

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« Reply #83 on: 31/01/2016 18:15:05 »
Coffee blocks iron absorption .

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Shaun

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« Reply #84 on: 08/02/2016 18:30:46 »
I can be wide awake and drink a cup of coffee and immediately be tired and sluggish

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GoodyRea

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« Reply #85 on: 13/02/2016 07:36:28 »
I'm one of the people who gets sleepy after coffee. Now that I work Noc shift, I don't feel so bad about drinking a small cup, and then getting 6 hours sleep. It still acts as a diuretic for me (thus ONLY 6 hours then pee like a race horse).

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AA

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« Reply #86 on: 27/03/2016 12:33:44 »
Sorry, but this article fails to explain the issue. It often happens to me that I wake up  feeling rested and then after my first few sips of the first coffee in the day, say around 7.30 am I feel suddenly tired and sleepy. Is this a sign that coffee is tiresome for the liver?

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Traino

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« Reply #87 on: 21/04/2016 02:18:04 »
I drink coffee and immediately feel very tired, my head gets stuffy and feel a buzzing feeling in my face around my sinus areas. From what I've managed to work out it can be the oil in coffee beans. Caffeine drinks wake me up.

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Erik J.

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« Reply #88 on: 29/06/2016 17:37:12 »
I'm am one of those rare/odd individuals that gets sleepy after consuming caffeine. I am and have never been a habitual consumer either. A cup of tea once or twice a week, coffee once in a blue moon (I probably cook with it more frequently than I drink it). I discovered this effect when I was about 10yrs old. I drank ~4-5 cups of coffee around 11am or so and about 15min later I was zonked out for a very nice nap as I recall haha. It has been that way ever since, which can be nice sometimes when i'm relaxing with a cup of tea.

From what I've found looking into this conundrum is that this rare effect is mainly/probably genetic. Some scientists discovered a breed/strain w/e of lab rat with a recessive gene (maybe a combination of multiple genes) that is totally immune to caffeine, and with some playing around with breeding these with others also found one that is subdued by caffeine. But, because of our limited knowledge of genetics (drop in the ocean really) we haven't yet identified the specific genes involved nor do we know how those genes create this effect or any other effects it/they might have on our bodies.

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Trish

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« Reply #89 on: 18/07/2016 16:56:28 »
Not always, but sometimes coffee nearly knocks me out! Within 1/2 hr of drinking a cup I can barely keep my eyes open. If I can snooze for 1/2 hr the effect seems to mostly wear off.

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Chris

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« Reply #90 on: 20/08/2016 10:54:08 »
I'm just like Matt. But i believe it is as Bill said, the association with routinely having it before laying down for need

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bascott63

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« Reply #91 on: 22/08/2016 03:29:40 »
I have the same problem.  I will drink a cappuccino, or a iced coffee and immediately feel sleepy.  It's not a crash later, it's immediate.  If i cut the coffee with a cream then i will get immediately drowsy.

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Joker

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« Reply #92 on: 29/09/2016 14:57:39 »
Hmm I also become sleepy a few minutes after drinking coffee, this has always been the case ever since I can remember so I don't think it's caffeine dependency. Maybe it's the genes, cause my mom is also like that.

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iwill

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« Reply #93 on: 12/11/2016 01:57:00 »
I'm 17 years old and doesn't drink coffee always but if there happens a time that I'm experiencing an insomnia, coffee always help me to sleep. Don't know why but I have read some comments and I think it enlightened my mind. Great discussion!
.

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Kendra

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« Reply #94 on: 17/11/2016 16:03:07 »
Im kendra. Im 17 yrs old. And this is what happening to me as always. As a teen, i do always go to sleep so late. Sometimes i am still awake in the morning. I normally get uh 4-5 hrs sleep a day. Dont know how to start changing my body clock so it is. And as a student, i literally need to wake up sometimes as in wide awake the whole midnight until i travel home. And my problem is that, i drink coffee to help me keeping me awake, i mean thats what people say. Coffee keeps you alive. But why every time i drink coffee, i always feel more sleepy and more tired rather than feeling you know what i mean. I really dont get it. It seems impossible. But its actually not. I cant even fight my sleepiness and i wanna get rid of it because im waking up with no tasks accomplished. :(