this post was submitted on 17 Feb 2026
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Marked differences between caffeinated, decaffeinated drinks in analysis of more than 130,000 people

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[–] MonkderVierte@lemmy.zip 1 points 2 hours ago
[–] Tetragrade@leminal.space 5 points 6 hours ago (1 children)
[–] jeff@programming.dev 14 points 11 hours ago (1 children)

Maybe there is something more here, but I'm always skeptical of these studies that are more likely explained because of wealth indicators or another confounding factor, like the red wine study from like 20 years ago.

Is it possible that people that drink 2-3 cups of coffee are more likely to have an office job, which is more likely to be intellectually demanding, which decreases risk for dementia. And if you drink decaf you are more likely to have another neurological disorder that increases dementia risk.

[–] Azal@pawb.social 6 points 10 hours ago (1 children)

Having worked in factories, the coffee in them is usually the strongest and always available, Blue collar lives on the stuff,

[–] jeff@programming.dev 5 points 9 hours ago

Yeah, I'm not claiming that's actually the reason, just an example of these correlations aren't always straightforward.

[–] Tollana1234567@lemmy.today 1 points 7 hours ago

also associated with lower blood sugar somewhat too.

[–] TropicalDingdong@lemmy.world 42 points 19 hours ago (1 children)

Me, 8 cups of coffee deep by 9AM, shitting my guts out, listening to two podcasts, responding to a slack thread, and shitposting at the same time, knowing I won't get dementia:

[–] Crozekiel@lemmy.zip 10 points 16 hours ago (1 children)

If I drank 3 cups of coffee, I would be able to see my pulse. But I guess if I die of a heart attack at 50 then I am much less likely to get dementia?

[–] LodeMike@lemmy.today 4 points 16 hours ago (1 children)

A day. Not at a specific time

[–] TehWorld@lemmy.world 1 points 6 hours ago

Lol. I often drink 3 cups of coffee before leaving for the office, where I usually drink a big mug-o sludge. At one point I was drinking a full 12 cup pot daily.

[–] Elting@piefed.social 17 points 19 hours ago* (last edited 19 hours ago) (2 children)

2-3 cups of coffee a day gives me a headache and diarrhea.

[–] ikidd@lemmy.world 11 points 13 hours ago

From low caffeine, right? Me too.

[–] BeigeAgenda@lemmy.ca 18 points 19 hours ago (1 children)

See you didn't get dementia, I call that a success!

[–] CannonFodder@lemmy.world 1 points 14 hours ago (1 children)
[–] Lucidlethargy@sh.itjust.works 2 points 6 hours ago (1 children)
[–] BeigeAgenda@lemmy.ca 1 points 1 hour ago

What were we talking about?

[–] Doug@piefed.social 13 points 19 hours ago (2 children)

Higher tea intake showed similar results, while decaffeinated coffee did not — suggesting that caffeine may be the active factor producing these neuroprotective results, though further research is needed to validate the responsible factors and mechanisms.

I have caffeine sensitivity and only drink decaf so uhhhh fuck me I guess 😔

[–] southsamurai@sh.itjust.works 1 points 11 hours ago

I feel that!

[–] Elting@piefed.social -1 points 16 hours ago

Decaf is pretty comparable to some kinds of tea in terms of caffeine content. I know when I make decaf it has way more caffeine than when I make black tea.

[–] CMDR_Horn@piefed.world 11 points 20 hours ago (1 children)
[–] CluckN@lemmy.world 20 points 17 hours ago

It’s called a grande sweety 💅💅💅

[–] SkaveRat@discuss.tchncs.de 4 points 19 hours ago

If only I wouldn't keep forgetting

[–] Mantzy81@aussie.zone 2 points 17 hours ago

This study brought to you by Charmin

The caffeine makes you active and seek mental challenges.

[–] SaveTheTuaHawk@lemmy.ca -1 points 19 hours ago (1 children)

ok, now do the proper controlled study comparing coffee to any other stimulant.

Stimulants like caffeine improve scores in cognition assays. Another 💩 study.

[–] AbouBenAdhem@lemmy.world 12 points 19 hours ago (1 children)

The primary outcome was dementia, which was identified via death records and physician diagnoses.

If caffeine has enough of an effect to change a diagnosis or death record, that seems worth reporting in any case.

And while it might be worthwhile to see if other stimulants have a similar effect, does it affect these results one way or the other?

[–] chisel@piefed.social 0 points 17 hours ago

Maybe 100% of the positive-caffine-outcome people also snorted 100mg of adderall every morning?