this post was submitted on 16 Mar 2026
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Caffeine is lowkey the most normalised and profitable drug addiction in the world, and it doesn't really even do anything. The whole 'giving you energy' thing is a myth, all it does it make you tired without it. That's why caffeine legally has to be listed as a 'flavouring' on the packaging, despite nobody on earth having a clue what it's supposed to taste like
The primary effect of caffeine is to block adenosine from getting to the adenosine receptors, and that hormone is generally associated with sleepiness. So it's kind of like caffeine creates an illusion that removes our awareness of sleepiness.
However this also has a cascade of secondary effects on the central nervous system that leead to things like blood pressure changes, improved lung function, increased cortisol and adrenaline levels, etc. Taken together, these things quite objectively generally result in greater feelings of alertness and energy. And anxiety.
As others have noted one case where it can have more of a calming effect is in people with adhd. It should also be noted that overconsumption of caffeine combined with other poor lifestyle choices quickly leads to chronic fatigue system, at which point no amount of additional caffeine is going to continue being helpful and it just becomes a slog of continuing to take it for no other reason than relief from withdrawal symptoms.
One dose a day is all that should be necessary - ideally taken as early as possible. It should also be noted that for most people in industrialized countries, coffee or tea might be their most significant and pretty much only reliable source of polyphenols.
And lastly don't forget the most important reason for drinking caffeinated beverages: the pooping!
^that.
...Also worth pointing out: caffeine gets added to a lot of analgesic meds. So it’s very possible to have a background caffeine load and not even realize it, whether that’s from taking a couple of caffeine-containing painkillers or eating dark chocolate.
Correct, it has a quite similar structure to adenosine. So it can prevent you from getting more sleepy but it can't "kick out" the adenosine already bound to the receptors.
Absolute nonsense. I don't drink coffee or tea, and if I drink a couple cups of coffee I end up with a hundred more tabs in the browser, two programming projects started and abandoned, a hundred notes tagged and reorganized, and a bunch of unnecessary and vaguely mean comments on Reddit and Lemmy. Possibly also a sore leg or shoulder from impromptu exercise.
You need to take control of your caffeine addiction.
https://www.chemistryhelpcenter.org/caffeine/ if you're curious. Caffeine is a really interesting molecule.
No, science. ~~(first result) \https://www.mindbodygreen.com/articles/does-caffeine-actually-give-us-energy~~
The other one, sounds like caffeine effect on ADHD.
:-/
:-|
Citation Ouroboros
Like i said, first result. You find 10 better after 10 seconds googling.
Why not just ask Gemini directly?
Thanks for your speculation as to what the nature of this effect might be, but I don't need it. Unless you totally abstain from coffee, tea and fizzy drinks, you have no idea what caffeine is like after not consuming it.
Especially, seeing as another guy here speculates that taking a nap after drinking coffee is a caffeine effect on ADHD, perhaps you two might want to speculate against each other as to whose speculation is more correct, speculatively speaking.
Thanks for admitting that your guesswork doesn't amount to jackshit since it contradicts itself.
With the info, that a "Syndrom" means a range of causes, displaying similiar effects you can roughly group together.
Now calm down.
Well then thank you for pulling the word 'syndrome' out of nowhere, since it figured nowhere in this conversation before. But you also say it means "displaying similiar effects", so you mean that "worsening their symptoms over having no effect at all to making them sleepy" and "getting a lot of ADHD antsy, jittery" are "similar effects"?
Let's also consult Wikipedia:
You must be like twenty years old to not know that stimulants give one an excess of energy that is later abruptly taken away.
Placebo effect entirely
Oh really? And are the whooshing of blood in my ears and the cranked-up muscle tone also from the placebo effect? And the fact that the shoulder muscles stay jacked up for several days afterwards, pulling my neck forward while the back muscles pull it back?
Stimulants stimulate the nervous system, who would've thought.
Sounds like quite a serious reaction. Have you seen a doctor about it?
Have you tried quitting your coffee addiction?
I don't drink coffee. Why are you angry?
Do you also not drink tea and fizzy drinks?
Not really
That's not serious. Abstain from all of those for a month or two, then down two or three cups of coffee and get back to me. Even better if you keep doing alcohol during that, which is famously a depressant of aforementioned nervous system.
Not to mention that, if you don't ever drink coffee, then you aren't in a position to claim what it does or doesn't do.
I just thought the stuff about muscle contractions in your shoulders/neck sounded concerning and unusual. I've never heard anyone mention something like that before.
That stems from my sedentary life mode. But it doesn't cancel the fact that caffeine stimulates skeletal muscle, particularly considering that I'm in the perfect position to judge it.
Again, caffeine is a stimulant of the central nervous system, which leads to a bunch of effects including heightened activity and muscle tone.
Nope. I can instantly tell when the wife has a Celsius or other "energy" drink because she doesn't normally. I'll full on addicted/dependant and it sucks trying to get off it, massive headaches, loss of focus. When she's on it, kitchens get destroyed and other random things when she goes on a "cleaning spree".
If you're not already addicted, caffeine can definitely pep you up quite a lot. Not in a comfortable way, though, in my opinion
Found the Mormon.
Most Mormons (especially the ones living in Utah) are hopelessly addicted to caffeine. They don't drink coffee, but they do have "dirty soda shops" and diet coke. They love that shit.
well caffeine mostly makes me pee. it's a diuretic which means it makes you pee. that's the thing it's most effective for for me. other side effects include having an easier time shitting because it increases bowel movements. apart from that it is a mild stimulant that maybe makes me a bit more creative. i've observed it a couple of times but it's inconsistent.
I'll be that guy: SUGAR. Just try cutting it out of your life and tell me we're not all hopeless fiends.
If you cut out sugar completely, your brain/central nervous system/red blood cells would break down.
We definitely consume too much sugar, but caffeine is not needed for anything.
False. The liver can synthesise over 100 grams of glycose per day, enough for the brain and the rest.
It's hard and crashy to withdraw from sugars, and it's hard because it's in all processed food and wherever they can stick it, but you can absolutely do it.
But if you pull through you'll feel way better because the body upregulates the fat to atp cycle instead of using sugar, so instead of getting hungry all the time when the body needs energy (and you are supposed to eat a donut) it just uses fat from our fat cells.
And if you eat a lot of sugar, as sugar is toxic to the body, it's used up ASAP and triggers insulin spikes etc. not exactly good for you in the long run.
Now, I guess you should try to figure out a good diet around all this of course, but sugar is just a toxic drug.
Sugar is only toxic when you get it from refined sources. When you consume whole, intact foods, in a balanced diet, sugar is totally fine and literally our primary fuel source. Our metabolic system prefers sugar as fuel so greatly that it 1) will use it over fat if available, and 2) will break down proteins in the body to get more glucose if deprived of it.
How's that acetone breath by the way?
Acetone breath? Nice argumentation.
You're just repeating what I said in another way:
yes, it will use it over fat, because it's bad for us, so smartly we'll use it up ASAP.
yes, other things (fat) will be used if you do not eat sugar.
Sugar is sugar, your idea about "natural" has no foothold in science, it's the glycemic index you want.
Also, if your diet is your primary "fuel source" I wouldn't like to be your arteries.
Would you care to try again and make sense this time?
Oh, you're salty, lol. It's not that hard to understand.
I think they mean the bullshit that is in everything and causing major health issues, high fructose corn syrup. Everything in moderation, but easier said than done sometimes with addictive substances.
i think they mean sugar intake, not sugar metabolism
dies
See what I mean!?
Caffeine absolutely does something what are you even talking about. There are thousands of research papers of what caffeine does.
https://psychonautwiki.org/wiki/Caffeine
Maybe if you're already taking it regularly this is true, but we know that it blocks some adenosine receptors, preventing the buildup of adenosine, which is one component in making us feel sleepy.
Yes it makes you feel less sleepy/tired but it doesn’t ’give you energy’ - just tricks the body into thinking it’s less tired than it actually is
That's not true. It sounds like you're confusing nicotine with caffeine. Nicotine is often credited with "taking the edge off" when in reality, that "edge" is a result of nicotine withdrawal.
Caffeine blocks the receptors that react to a chemical the body releases when it's tired. You're right that it doesn't give you more energy, but it does stop you from feeling by tired.
Out of all the common legal drugs (nicotine, alcohol, THC) caffeine actually provides some of the best benefits with least intrusive drawbacks.
Making you not sleep isn't really the same as giving you energy, and since most people take it in the morning anyway it doesn't really matter
I know you said "gives you energy" originally, but is that how most people think of coffee? I tend to think of it as "When I drink this I'll be less tired."
Caffeine is not addictive in the technical sense.