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Up to 25 cups of coffee a day still safe for heart health, study says

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Re: Up to 25 cups of coffee a day still safe for heart health, study says

#41

I love coffee but I feel three per day is pushing it. Do people really drink much more than that?

Just finished my 7th, wondering if i can fit an 8th in before home time in 35 mins.

Not a conscious effort... Just sorta happens.

Re: Up to 25 cups of coffee a day still safe for heart health, study says

#42

I love coffee but I feel three per day is pushing it. Do people really drink much more than that?

I drink about a couple of liters per day, sometimes less, depending on the mood. I think I have no caffeine sensitivity at all, since I have normal BP, no sleep problems, and am able to stop drinking all caffeinated beverages for a few weeks without any (obvious) problems (did it several times after getting tired of the taste).

All these personal anecdotes (when I stopped drinking coffee, my wife returned to me, and I won in Powerball!) sound very strange to me.

Re: Up to 25 cups of coffee a day still safe for heart health, study says

#43

I love coffee but I feel three per day is pushing it. Do people really drink much more than that?

I probably drink 6-8 cans of soda daily, though they've got less caffeine than a cup of coffee. I find I just like to sip on something constantly, and water gives me a headache.

You'll probably save money on shoes later in life with stats like that... Every cloud ect.

Re: Up to 25 cups of coffee a day still safe for heart health, study says

#44

I drank five to six cups a day, and felt like I desperately needed it, and scoffed at anyone who suggested I try getting by with less. At some point I stumbled on an article about the adenosine receptors in your brain will actually compensate for this much caffeine by just growing more of them. I also read that you can actually "kill" these extra receptors by going cold turkey for a week. So I did it, and it sucked (…

I didn't have to go cold turkey; I simply stopped drinking as much and my receptors managed.

The funny thing is, the craving for coffee when I'm at work is when I'm stressed out and want control over something. Well, coffee has a very neat little cause-effect system that would give me something to change reliably.

The problem is, I don't even particularly like the effects of that second or third cup of coffee; I just wanted the control to change my state of mind.

I'm not perfect and I still do reach for that 2nd or 3rd cup sometimes but by realizing I'm a better coworker with just the one first thing in the morning helps a lot.

Re: Up to 25 cups of coffee a day still safe for heart health, study says

#46
25 cups of coffee in a day sure seems like an unhealthy amount of caffeine.

it seems the only factor they were checking for (?) was arterial stiffness? if you're arteries aren't stiff but you're hyped and anxious out of this world and have a very elevated heart rate... not sure the stiffness is what matters anymore

1 cup typical drip coffee = ~70-120mg caffeine

25 cups = ~1750-3000mg caffeine

Examine (https://examine.com/nutrition/caffeine-consumption/) recommends up to 400mg/day as safe for healthy adults as in "most healthy people won't experience side effects at this level". It seems like 1000mg is the "beginning" of toxicity for a healthy person. Of course, half-life and time between consumption of different sources makes a difference too.

But 1500, 2000+ in a day? Phew, maybe I'm overly cautious but that just seems unwise for anyone

Re: Up to 25 cups of coffee a day still safe for heart health, study says

#47
"Health" here is a soft term to mean "won't kill you quickly or effect your tissue for a long time".

Talking about the effect of healthy hearts obscures the effects. I am in stage 2 heart failure (as I have been for a long time). I cannot drink coffee, as it aggravates the tissue.

The study can say whatever it wants about coffee (without caffeine), but the effect of 100mg of caffeine on the heart is detrimental. That dread is the same as many heart-attack-precursor feelings (also documented in EMT training), that racing heart rate is aggravation of the left atrium, that shaking is the fight-or-flight adrenaline (which is what makes us feel good). This looks like a proletariat study. "Sure you can drink as much coffee as you want, as long as you feel good about producing. It's fine until it isn't."

Re: Up to 25 cups of coffee a day still safe for heart health, study says

#48

I love coffee but I feel three per day is pushing it. Do people really drink much more than that?

Espresso shots. Yes, there are some of us that enjoy coffee. In certain countries within Europe, I saw people drink coffee after dinner...didn't make any sense to me, but it seemed to be a common cultural thing.

Re: Up to 25 cups of coffee a day still safe for heart health, study says

#49
I almost spit out my coffee upon reading "25 cups of coffee a day" -- wait, what!?

Then I read the OP... and yes, it turns out there are people who routinely drink that much coffee in the UK.

Wow.

Can you imagine what one's body would feel like after ingesting 25 -- twenty five -- cups of coffee in a 24-hour period?[a]

[a] Assumes zero hours of sleep per day.

Re: Up to 25 cups of coffee a day still safe for heart health, study says

#50
post #49

I almost spit out my coffee upon reading "25 cups of coffee a day" -- wait, what!? Then I read the OP... and yes, it turns out there are people who routinely drink that much coffee in the UK. Wow. Can you imagine what one's body would feel like after ingesting 25 -- twenty five -- cups of coffee in a 24-hour period?[a] [a] Assumes zero hours of sleep per day.

Cutting back to single digits is the hardest part!

My company had a row of 3 automated espresso machines so I timed the dispensing delay (which happened to be almost exactly the grind time) so that I could pipeline the process using all of them. People were moderately horrified as I filled my coffee cup with a hexa-shot of espresso... but why waste time hanging around the water cooler when you can vibrate in front of your computer?

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