How about 15?
Also, I wonder if they controlled for people who do specific kinds of work where coffee explicitly helps in the labor.
this post was submitted on 10 Feb 2026
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How about 15?
Fight dementia today, by dying of a heart attack at 45 instead
15 is a fine number. I once had 15 in two hours. I'm fine.
I discovered a hack deal by just pouring extra shots of espresso into the coffee. One cup, 10 shots, one gram of caffeine. Expect the barista to glare with concern, it’s part of the deal.
I did once have two quad espressi while waiting for a flight at stupid o'clock in the morning at Stansted airport. The guys in Costa coffee mostly just found it amusing.
I was also once approached by an alcoholic who chastised me for drinking coffee in a bar in the middle of the day instead of "a real drink". I offered to take a shot of vodka for each espresso he drank and "we would see who dies first". He didn't take me up on my offer.
How does any form of “labor” not fit that criterion?
Yeah that doesn't make sense. More like if the people drinking 3-4 cups a day are doing mental work vs physical work
Im not convinced that picking Amazon packages, operating heavy machinery, doing data entry, or copy editing would have vastly differing performance changes from coffee consumption.
However…
I would imagine that an office worker might have more ready access to coffee, such as a communal coffee maker, than someone with less sedentary workspace.
Read in a book about coffee that without coffee the Industrial Revolution wouldn’t have happened. Coffee fuels capitalism by making people work.
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I believe surgeons, dentists, and people who do similar small-scale hands-on work, like precision soldering, avoid coffee, because it makes for shaky (but alert!) hands. There are likely enough others that I'm not thinking of.
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"Who are you again?I haven't had my coffee yet."
I'm on my way to having anti-dementia, then.
In this case, it appears to be the caffeine. Also, with these sorts of large studies, the amount is self-reported, so "a cup" is whatever the person reporting considers to be a cup, it's not some controlled amount.
Question: Is long-term intake of caffeinated and decaffeinated coffee associated with risk of dementia and cognitive outcomes?
Findings: In this prospective cohort study of 131 821 individuals from 2 cohorts with up to 43 years of follow-up, 11 033 dementia cases were documented. Higher caffeinated coffee intake was significantly associated with lower risk of dementia. Decaffeinated coffee intake was not significantly associated with dementia risk.
Meaning: Higher caffeinated coffee intake was associated with more favorable cognitive outcomes.
Yea, "associated" does the work here. More research is needed into daily mental activities. It could simply be that those requiring more caffeine are also more stimulated day to day.
Remember the definition of dementia is a bit counter-intuitive. It’s “not important” what sort of neural degradation you are dealing with, the diagnosis is defined by how much it affects you. A lot of the things that “reduce” dementia are actually things that help you work around the damage so the impact in your life is reduced.
how are they defining "cup"? 16 oz? 8? some coffee roasters advise using 6oz "cups" as a measurement, some say 8
Don’t know regarding the study, but as a rule coffee “cups” are commonly either 4oz or 6oz.
6oz is the most common measurement for a “cup” of coffee as far as I know.
which is hilarious because a "cup" for me is more than 3 times that
Yeah, my average “cup” is like 16-18oz.
125ml
Only 2-3 cups?? I think I have dementia risk credit.
We can start a scam like carbon-credits, and sell off our extra coffee usage to others who don't drink as much!
Causation vs correlation. I’m thinking caffeine keeps your brain stimulated which lowers risk of dementia. You can probably equally keep your brain stimulated other ways especially if you already have an active lifestyle.
especially if you already have an active lifestyle
There's no need to attack me so hard
Haha doesn’t have to be physically active
Hahah
Iirc the causality is thought to be about opening vesicles and increasing blood flow in the brain.
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My guess is that people who regularly drink coffee are supporting some sort of regular mental activity, like a job or school.
Could be due to fiber. Reduce cholesterol, improve gut health
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Guess I'll die
I drink coffee because I'm tired because I didn't sleep enough.
caffeinated coffee lowers risk. not sleeping increases risk.
does that mean that I can replace sleep with caffeine?
Does decaf work?
Read the article? They found that decaf did not confer the same benefits
Given that they specified "caffeinated tea" as also conferring benefit, I would guess it's the caffeine that's the active substance here.
More is better, right? . . . MORE IS BETTER?!?!!
*shlurp*
The most pronounced associated differences were observed with intake of approximately 2 to 3 cups per day of caffeinated coffee or 1 to 2 cups per day of tea.
If this is true I’m gonna be the smartest person in the nursing home.
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Correlation does not equal causation
Edit: although half the rate is very interesting
But it does nod in a direction and wiggle its eyebrows suggestively.
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