- cross-posted to:
- science@lemmy.world
- cross-posted to:
- science@lemmy.world
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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.
Did they account for the coffee achievers? Maybe they threw off the curve.
Link for the kids
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.
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
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
Hahah
Haha doesn’t have to be physically active
Iirc the causality is thought to be about opening vesicles and increasing blood flow in the brain.
Ah interesting. Can that be done equally without caffeine?
Complex question. Many things increase blood flow like physical exercise or even alcohol. While being active for sure is healthy, alcohol combines the positive and the negative so the effect will not be measurable.
Apart from that: caffeine is the only controversial thing in coffee (other studies report different results). Decaf is healthy without doubt. For old people caffeine has no effect on sleeping so we could recommend it for brain health. If you can still feel an effect on your sleep, do what feels best for you.
God made caffeine. Caffeine good for man. End. Of. Story.
My guess is that people who regularly drink coffee are supporting some sort of regular mental activity, like a job or school.
It’s fine to highlight it’s correlation, but your guess is a theory of causation. It’s likely either some genetic combo that drives the desire for coffee or some lifestyle arrangement that drives the need.
Even the idea that an inactive mind leads to deterioration isn’t definitively causation. Correlation goes both ways. Are they mentally healthy because they’re mentally active? Or are they mentally active because they’re mentally healthy? The degree of mental deterioration goes up as you age, which is also when you can retire, when you don’t have to support your family, when you’re physically incapacitated, and when you slow down overall. So yeah, I plan to stay active because I’ll take my chances that it helps, but at some point, something will simply break. Maybe I’ll inherit the dimentia. Maybe I’ll inherit the neuropathy. Maybe both. Maybe neither.
Maybe I’ll inherit the dimentia.
Well…
“Who are you again?I haven’t had my coffee yet.”
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.
Only 2-3 cups?? I think I have dementia risk credit.
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Does decaf work?
Given that they specified “caffeinated tea” as also conferring benefit, I would guess it’s the caffeine that’s the active substance here.
Read the article? They found that decaf did not confer the same benefits
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.
Guess I’ll die
I switched to decaffeinated a couple of years ago, because of high blood pressure. I think I’ll add caffeinated back for my first two cups in the morning and then decaffeinated for the rest of the day.
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?
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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.
