MEDI-TRIVIA Vol. 1: Still sleepy after drinking coffee?

Caffeine is the most widely consumed psychoactive substance which stimulates the central nervous system to keep our body awake. It is present in coffee, tea, chocolate, cola and other carbonated beverages and cocoa. But have you ever thought why do you still sleepy after drinking coffee?
Caffeine is a mild diuretic which makes you pee and according to Mayo Clinic, it doesn’t increases the risk of dehydration. But if you are the type of person who doesn’t drink 8 glasses of water per day  but a coffee lover then you are on the risk of being dehydrated. You lose water not only through urination but also through breathing, sweating and defecated. Along with water, small amounts of salts are also lost. Remember, sodium and water always come together. A good amount of sodium aids in the nervous system to function well by playing a role in action potentials. Moreover, when there is low level of water within the body, it causes your blood volume to decrease thus leads to thickening of the blood. Your body is using oxygen at slower rate and this makes your body sluggish. And when the time you think that coffee isn’t working anymore, we tend to add another coffee or you’ll start with high dose of caffeine. The more you drink, the more you pee and you are not hydrated well, you are increasing your risk to dehydration. Thus, makes you sleepy even though you already consumed coffee.
Keep your body hydrated

Our  brain is composed of approximated 73% of water and its function depends on having abundant access to water. Water is needed for the production of hormones and neurotransmitters. So if you are well hydrated, you will be able to think faster and more focused. If you drink the recommended amount of water which is 8 glasses of water or 2L of water, it will replenish the loses in your system. Or just follow what your grandma says, drink plenty of water.

Wait for a few minutes
A new study from Barcelona University reveals that the effects of caffeine begin after as little as 10 minutes and 45 minutes is the time needed for maximum caffeine concentration to be reached in the blood. So wait for a few minutes and do not take another cup because it will be vicious cycle doomed to fail. 
Remember: The recommended caffeine intake is 250 mg and more than that leads you to intoxication. This is characterized by restlessness, diuresis, gastrointestinal disturbance, muscle twitching, rambling flow of thought and speech, tachycardia, periods of inexhaustibility and psychomotor disorder. 
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Marica, a 20-something lady who loves to explore new things in the world while juggling her life in the medical field.

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  1. Caffeine mimics adenosine which gives it capability to bind with the adenosine receptors in our brain. When there is an increase or more than the recommendation intake of caffeine, our body tend to build up more receptors for compensation. Like other drugs, we develop tolerance. So eventually, our body feels normal even after large amount of coffee was already consumed.

  2. Milo contains theobromine which is like caffeine that blocks adenosine. Adenosine is the one that plays a role in promoting sleep. The difference of theobromine from caffeine is that it is a muscle relaxant, so you won't feel any palpitations. Maybe that explains that even if you don't drink coffee, you are still productive 🙂

  3. I don't drink coffee! Yuhoo haha! But I like the smell of it if freshly-brewed. Well, each of us has a way to battle sleepiness. If after everything, coffee still doesn't work, there must be something else that's wrong like irregular sleeping patterns and severe sleep deprivation. Just something to think about. 😉

  4. I'm not a coffee drinker. I actually don't need to, although sometimes its smell is tempting me. Whenever I need to stay awake, my body has its own way of fighting sleepiness. Lucky! But yeah, I usually don't have a problem getting things done even in the wee hours of night. Or very early in the morning.

  5. I am not much of a coffee drinker ( I prefer tea), but whenever I choose to drink coffee to stay awake, I always end up getting more. Kaya pala! I'm not the type of person who drinks 8 glasses of water a day. Hmmm. This means I have to keep myself hydrated at all times.

  6. It can happen to them. But it depends on the genes of one person in response to the caffeine intake. Some are sensitive while some has high tolerance :3

  7. I drink coffee twice a day. It is like juice to me. But I am in a process of rebooting my self with caffeine because I already developed tolerance with caffeine.

  8. Befor, I don't drink 8 glasses of water per day and my coffee in take is twice a day. I believe I have already developed tolerance with caffeine. So I learned to keep myself hydrated by bringing a water tumbler to school and even downloaded an app to remind me to drink water. haha.

  9. Okay, so reading all of this has kind of connected some things in my brain and helped make sense of my past coffee-drinking experiences! Come to think of it, the times when I really feel the coffee kick in are times when I've had plenty of water and fluids in me, which is usually nowadays as I've learned to make a habit of it. But back then, not so much, and still feeling groggy even after downing a cup of broad coffee was a pretty common occurrence, now I know why! 😀

  10. What can you say that Kopiko 78 incident? Do we have to consider the body weight when it comes to setting the maximum allowable caffeine? I never been addicted to coffee there are just times that I do not need a caffeine fix especially when the interest levels are so high like when playing video games. Just like alcohol I think the best tip would be drink moderately. 😉

  11. Wow. I used to experience this. This article explained this and yes. When 1 coffee is not enough, I intend to another one but I will limit my coffee intake for 2-3 sachets everyday. I thought, the caffeine will not effec to my anymore. Mind blown! It means I need to drink plenty of water too 🙂

  12. I don't drink coffee even though school makes me so tired and sleepy. But, eating apple does the same trick, and it is way healthier than coffee. It's a great alternative to coffees 🙂 – Gee

  13. I read/watched a video/heard it from a friend (IDK, it was a long time a go T_T), so basically, if you are sleepy but wants to 'not' sleep and still be productive in whatever you are doing, drink a cup of coffee and have a nap for 15 mins. It is because caffeine will take effect after 15 mins or so. I haven't tried that tho because I'm a not a coffee drinker. haha

  14. Wow, I've been drinking coffee all my life, I was nurtured in the family were coffee is the substitute of milk. Isn't that so weird? But that's how we value coffee. Thank you so much for all this data, I might call all our family members or let them read this as well. I think this article is really helpful.

  15. It's really a dilemma at the office during working hours when Mr. Sleepyhead tries to dominate your body, especially after lunch. Ugh. Grabe ka duka jud! I tried coffee after coffee but it's no use. But yes, I totally agree about hydrating. It works in some ways! Plus, it lessens the occurrence of headaches. Thanks for sharing your thoughts about this! 🙂

  16. I finally know something about coffee. Whew! I sometimes drink coffee when I am really exhausted just to be awake at work. Thanks for this!-Jay

  17. Well, I had no idea that drinking coffee can cause dehydration. Anyhow, I think I'm caffeine intolerant; I sometimes doze off even after I've drank a cup or even two of coffee. Not even the 78 degrees variant did wonders on me.

  18. I dont drink coffee until I started working. I don't like it for some reason. I tried it once when I was assigned on a graveyard shift for training and thats the start when coffee became part of my morning, afternoon and night drink esp on times when Mr sleepy will pay a visit at work. Sometimes coffee has no effect on me even if I have more than enough already. Now I know why it happened. Thank you for this article, it really enlightened me about all these stuffs. Great read!

    Coffee is life!

  19. Nice!.. I moderately drink coffee now, when I discovered that I am having tremors and palpitations every time had an intake, so I decided to lessen or stop (if possible). I love Caramel Frappe, and most of the coffee shop had their Caramel Frappe coffee based, however I always ask if they serve decaf and some will and some don't. So if the coffee shop don't serve decaf then I left with no choice. Still have to drink it. There are time that it has an effect on me, and some times caffeine seems to have no effect at all. Case to case basis. 🙂

  20. I feeli like going back to my pathophysiology class during nursing school. Hehe! This just say that everything has its adverse reaction if consumed more than its recommended intake. Always be in moderation to achieve the therapeutic effect of everything.

  21. I have read in articles and saw videos about enjoying the maximum effects of coffee. Drink it, take a nap for about 15 minutes then wake up feeling refreshed. Haven't tried it personally because after years of drinking coffee, it is now my pampatulog or pampaduka. Hahaha! I have heard news about the Kopiko 78 incidents. Wow! A lot of people really think that coffee is not something that will affect overall health if taken in high doses, right? Juice colored. But anyway, let's drink to our health na lang. Cheers!

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