The Naked Scientists
  • Login
  • Register
  • Podcasts
      • The Naked Scientists
      • eLife
      • Naked Genetics
      • Naked Astronomy
      • In short
      • Naked Neuroscience
      • Ask! The Naked Scientists
      • Question of the Week
      • Archive
      • Video
      • SUBSCRIBE to our Podcasts
  • Articles
      • Science News
      • Features
      • Interviews
      • Answers to Science Questions
  • Get Naked
      • Donate
      • Do an Experiment
      • Science Forum
      • Ask a Question
  • About
      • Meet the team
      • Our Sponsors
      • Site Map
      • Contact us

User menu

  • Login
  • Register
  • Home
  • Help
  • Search
  • Tags
  • Member Map
  • Recent Topics
  • Login
  • Register
  1. Naked Science Forum
  2. General Science
  3. General Science
  4. Why does coffee make me sleepy?
« previous next »
  • Print
Pages: 1 2 [3] 4 5 6   Go Down

Why does coffee make me sleepy?

  • 118 Replies
  • 42637 Views
  • 0 Tags

0 Members and 1 Guest are viewing this topic.

Court

  • Guest
None
« Reply #40 on: 18/06/2014 07:54:20 »
I am not a big coffee or caffeine drinker.  I'll have a cup of coffee a few times a week or if I'm working swing shift.  About 10 minutes after I have a cup of coffee, my body instantly feels weak and my eyes start to droop.  Every time  I have any sort of caffeine this happens.  I don't know why I still drink coffee, it tastes good to me, but my body has weird affects with it.  It doesn't wake me up.  So if I can't fall asleep at night I instantly go for a cup of coffee.  
Logged
 



Chanel

  • Guest
None
« Reply #41 on: 10/07/2014 22:52:51 »
Coffee relaxes me, drops my blood pressure (measured/confirmed by MD ), and can make me fall asleep within 30 mins or less after consuming it. I'd also like to understand why. This happens Even if I'm well -rested.
Logged
 

Clarity

  • Guest
None
« Reply #42 on: 23/07/2014 06:30:04 »
I immediately feel increasingly tired after drinking caffiene. I recently got back from a road trip where I consumed copious amounts of coffee and Red Bull and then fell promptly asleep, which was not good for driving. I guess in some people it just has opposite effects.
Logged
 

Swazzy

  • Guest
None
« Reply #43 on: 23/08/2014 17:34:16 »
I also drink coffee very rarely, mainly because I dislike the taste of all except the Mocha flavours but I do regularly take caffeine pills known as Pro Plus. My Sleep pattern is sporadic but I also function a lot better on 4-5 hours sleep than I do on 6-8 and I also have a very high metabolism. I to feel extremely sleepy within 30 mins of drinking even the exceptionally strong coffee
Logged
 

Steve

  • Guest
None
« Reply #44 on: 12/09/2014 14:16:35 »
I think there may be something to how coffee reacts with ADD brain wiring. I was not diagnosed ADHD, so, dont have the hyper issue being thrown in reverse by a stimulant. I too get very drowsy while drinking coffee. Less often, I might get a short and very temporary boost, followed by the drowsiness. I have dozed off at my desk at work for a few seconds while consciously fighting to stay awake. This after drinking 2 to 4 cups of coffee each morning. The other benefits I see mentioned, that includes intestinal regularity, I have experienced as well. It also helps clear my throat in the AM from allergy generated sinus drainage. Geez, it is complex!
Logged
 



SaDaF

  • Guest
None
« Reply #45 on: 16/09/2014 14:56:27 »
I have recently started having coffee as my exams are going on.. It makes me sleepy. :( before i used to having tea when needed,but same result.. It made me sleepy in place of waking me up..
Logged
 

Mystgreen

  • Guest
None
« Reply #46 on: 07/10/2014 20:26:26 »
Oddly enough; I frequently drink multiple shots of espresso etc prior to meals to stimulate my digestion which it seems to help.  But when I drink coffee or tea in the evening or at night it also makes me drowsy and does not negatively affect my sleep.
Logged
 

Ben Benson

  • Guest
None
« Reply #47 on: 08/10/2014 05:54:40 »
I found this article because I wondered why the drowsy effect of coffee was so instantaneous and like clockwork for me. It happens 10 to 20 minutes after I drink it. I even had a micro sleep just now, sitting up with my eyes open, shortly after drinking a cup. Before this, I was wide awake and full of energy. I just wanted to drink the coffee for its taste. Other hot drinks and instant coffee DO NOT do this to me, it's specifically plunger coffee or espresso. I have also had paradoxical reactions to other substances, such as a sleeping pill gave me insomnia, it was impossible to sleep for hours, and tequila acts as a stimulant but other spirits are a depressant.
Logged
 

J McDonald

  • Guest
None
« Reply #48 on: 28/10/2014 08:39:21 »
I too suffer from this, I can drink 2-3 cups of coffee and fall into a deep sleep within minutes. Seems to have the opposite effect on me!
Logged
 



Jenoir

  • Guest
None
« Reply #49 on: 28/10/2014 08:52:56 »
I also suffer from this problem. I've read that coffee makes you pee a lot, which makes you dehydrated, your blood thickens, causing you to feel fatigued and fall asleep. Hope this helps!
Logged
 

hannah

  • Guest
None
« Reply #50 on: 09/11/2014 21:36:26 »
I drink rockstar blueberry high caffeine energy drinks and even while drinking them I fall asleep I sleep minimum 9 hours a night and usually get really tired and nap a couple hours in afternoon
Logged
 

Thomas

  • Guest
None
« Reply #51 on: 17/11/2014 02:03:26 »
I had a professor that told me once that getting sleepy after drinking caffeine is a possible sign of a rare form of diabetes. (She had that form of diabetes)
Logged
 

Tjspoerer

  • Guest
None
« Reply #52 on: 18/11/2014 14:40:49 »
Coffee makes me sleepy too and the days I have less I am much more alert.
Logged
 



Rhea

  • Guest
None
« Reply #53 on: 18/11/2014 23:44:15 »
I don't drink coffee at all generally, but if on the rare occaison I do, I start immediately feeling drowsy and need to sleep This has always been the case with me I always thought my body/brain was wired differently
Logged
 

lizz

  • Guest
None
« Reply #54 on: 27/11/2014 06:01:50 »
I can drink coffee and immediately feel sleepy.  

In fact its 12:57 a.m.
I have a flavored 16 oz cappuccino with three little shots which are supposed to each equal one shot of espresso (*each*.... and there are three in this cup)

And i am falling asleep -hence me finding this through a google search.  

-lizz-
Logged
 

Nick

  • Guest
None
« Reply #55 on: 03/12/2014 03:30:53 »
I drink 1-2 mugs of coffee every morning, and I have been doing that since High School.
But I never drank it for the caffeine or for waking me up, I drank it for the sweet taste of coffee with sweetened liquid creamer. On the infrequent chance that I brew an additional pot of coffee (2 more mugs) for an afternoon drink I feel sleepy. And I only feel sleepy when in the afternoon. Even rarer is if I choose to drink coffee at night (say I'm out with friends or studying in the library or a coffee shop), it has no effect on me and it does not affect my sleep and I do not experience any caffeine crashes. I drink plenty of water throughout the day to keep hydrated and at meals, I drink one glass of fruit juice and then the rest are glasses of water. But if I miss my morning coffee I feel no symptoms of withdraw or headaches.
Logged
 

Nick

  • Guest
None
« Reply #56 on: 03/12/2014 03:31:48 »
I drink 1-2 mugs of coffee every morning, and I have been doing that since High School.
But I never drank it for the caffeine or for waking me up, I drank it for the sweet taste of coffee with sweetened liquid creamer. On the infrequent chance that I brew an additional pot of coffee (2 more mugs) for an afternoon drink I feel sleepy. And I only feel sleepy when in the afternoon. Even rarer is if I choose to drink coffee at night (say I'm out with friends or studying in the library or a coffee shop), it has no effect on me and it does not affect my sleep and I do not experience any caffeine crashes. I drink plenty of water throughout the day to keep hydrated and at meals, I drink one glass of fruit juice and then the rest are glasses of water. But if I miss my morning coffee I feel no symptoms of withdraw or headaches.
Logged
 



M

  • Guest
None
« Reply #57 on: 03/12/2014 05:42:04 »
ADD & ADHD
If it makes you drowsy almost immediately it is not a crash or anything similar. Those who mentioned ADD and ADHD are correct. Stimulants all effect ADD and ADHD including caffeine. Drinking something with caffeine can focus and calm those with the conditions, even aiding in sleep. University studies have shown caffeine may be a viable option in replacing heavy stimulants like Methylphenidate in children and adults with ADD and ADHD.

http://psychcentral.com/lib/caffeines-effect-on-adhd-symptoms/0003050
Logged
 

Guest

  • Guest
None
« Reply #58 on: 15/12/2014 17:03:11 »
I fall sleepy immediately with coffee. I find it helps me concentrate on sleeping and eliminates my rapid random thoughts that tend to keep me awake.
Logged
 

Amy

  • Guest
None
« Reply #59 on: 03/01/2015 03:23:40 »
It seems there are so many of us that have this problem that the Naked Scientist's responses seem quite naive. It just shows the complexity and variety present in the human population. I am exactly the same as Angie, I can often have a cup of coffee and be bouncing off the walls, on other occasions I literally need to nap for a couple of hours afterwards (the drowsiness sets in within around 5-10 mins of drinking the coffee). Luckily it's a Saturday today (after the drowsiness set in) so I was able to have a sleep after my coffee. I drink one cup of coffee everyday after breakfast.
A strange phenomenon, but glad to hear there are others who have this problem, and hopefully we can get to the bottom of it one day!
Logged
 



  • Print
Pages: 1 2 [3] 4 5 6   Go Up
« previous next »
Tags:
 

Similar topics (5)

What is "Laughing gas"? Why does laughing gas make you laugh?

Started by paul.frBoard Chemistry

Replies: 7
Views: 50662
Last post 28/06/2020 11:16:38
by Bored chemist
Why do colours add up together to make other colours?

Started by bizerlBoard General Science

Replies: 16
Views: 31526
Last post 28/06/2020 23:52:21
by evan_au
Do sounds add together to make louder sounds?

Started by PhoebeBoard General Science

Replies: 28
Views: 32890
Last post 13/05/2020 00:20:25
by Colin2B
Could Enough Water Make A Water Star?

Started by neilepBoard Physics, Astronomy & Cosmology

Replies: 17
Views: 34048
Last post 17/03/2018 21:01:28
by Recrudesce
Can I make iodine crystals from povidone iodine?

Started by chewwchewwBoard Chemistry

Replies: 14
Views: 56113
Last post 30/09/2018 13:41:19
by Bored chemist
There was an error while thanking
Thanking...
  • SMF 2.0.15 | SMF © 2017, Simple Machines
    Privacy Policy
    SMFAds for Free Forums
  • Naked Science Forum ©

Page created in 0.124 seconds with 72 queries.

  • Podcasts
  • Articles
  • Get Naked
  • About
  • Contact us
  • Advertise
  • Privacy Policy
  • Subscribe to newsletter
  • We love feedback

Follow us

cambridge_logo_footer.png

©The Naked Scientists® 2000–2017 | The Naked Scientists® and Naked Science® are registered trademarks created by Dr Chris Smith. Information presented on this website is the opinion of the individual contributors and does not reflect the general views of the administrators, editors, moderators, sponsors, Cambridge University or the public at large.