Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

nature.com

Post reply on HN
Print view View original

21–30 of 236 posts

Re: Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

#21

Post by velcrovan »

vouaobrasil wrote: post #15

I like caffeine. It's fun to drink a cup of tea or coffee once in a while and feel an extra surge of productivity. What I don't like is that it has encouraged the grind of people working far longer and harder than they should for no reason except economic gain which is fundamnetally unsustainable. When people feel tired, they should take a break, and not develop a habit of drinking caffeine every day to keeep going.…

I think people should be able to do what they want with their time.

I don’t think people should have to sell their labor for a wage in order to live. I wonder what happens to your opinions about caffeine in a society where owners have little to no leverage over workers, or where the workers are generally also the owners.

Re: Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

#22

Post by Bumblonono »

hnbad wrote: post #6
hu3 wrote: post #2

Am I wrong to conclude from the abstract that sleep deprivation + caffeine = reduction in grey matter? Abstract: > Evidence has shown that both sleep loss and daily caffeine intake can induce changes in grey matter (GM). Caffeine is frequently used to combat sleepiness and impaired performance caused by insufficient sleep. It is unclear (1) whether daily use of caffeine could prevent or exacerbate the GM alterations…

Oh, great, so my brain really is soup after decades of drinking caffeine and not sleeping enough because of untreated AuDHD.

I read a while back that people with ADHD have even holes in their brains after years/decades :|

I love my work from home because i started sleeping in on wednesday if i had a shitty night.

For nearly a decade i was super tired after wednesday

Re: Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

#23

Post by b800h »

janpmz wrote: post #17

Recently I've learned that half of the people are slow caffein metabolizers. The caffein stays longer in their system and it might negatively affect their sleep. Considering how many people drink coffee, I think a lot of people are affected by this.

Yep - raising my hand here. I've completely given up caffeine (including decaf, which isn't totally) because after I got a Fitbit, I realised that my morning coffee spiked my heart-rate to 120, and kept it thereabouts, slowly dropping to normal overnight, after which I'd start again.

A genome sequence shows I'm a slow metaboliser (I expect more will show up with more research).

I feel terrific now.

Re: Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

#24

Post by [deleted] »

redoubt wrote: post #9

Medical engineer here; I would suggest anyone whoms interest was caught by the title to read the Discussion, not Abstract. The authors have made good use of the section to broaden their conclusions, answering some of the questions I've observed in this thread. For anyone starting to second-guess their relationship to sleep and caffeine; do note that this is a small-sample study and that more research is needed before…

[deleted]

Re: Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

#25

Post by heraldgeezer »

vouaobrasil wrote: post #15

I like caffeine. It's fun to drink a cup of tea or coffee once in a while and feel an extra surge of productivity. What I don't like is that it has encouraged the grind of people working far longer and harder than they should for no reason except economic gain which is fundamnetally unsustainable. When people feel tired, they should take a break, and not develop a habit of drinking caffeine every day to keeep going.…

For work? I drink it for headshots in CS and to grind for loot. (I am unemployed)

Re: Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

#27

Post by roywiggins »

janpmz wrote: post #17

Recently I've learned that half of the people are slow caffein metabolizers. The caffein stays longer in their system and it might negatively affect their sleep. Considering how many people drink coffee, I think a lot of people are affected by this.

I suspect I am an unusually fast metabolizer, since I can be tipped over into very nasty withdrawal headaches extremely easily, even when my baseline consumption is a couple of smallish coffees in a day. The only way I've found to fix this is to get almost completely off it, which as you might imagine I find very difficult to do, since I have to step down very carefully.

Re: Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

#28

Post by kachapopopow »

BossingAround wrote: post #16

Anyone with anxiety or sleep issues should reexamine their caffeine usage. Maybe those problems do not stem from caffeine, but maybe they do. I don't know many people that do not consume caffeine regularly, at least once a day - in such cases, you cannot know whether your anxiety, sleep problems, general tiredness, bad moods, ... are or are not caused by one's caffeine consumption. Some people swear by drinking a sho…

Caffeine makes me very sleepy if I drink it mid-day and I do in fact usually fall asleep early.

Re: Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

#29

Post by mhb »

velcrovan wrote: post #21
vouaobrasil wrote: post #15

I like caffeine. It's fun to drink a cup of tea or coffee once in a while and feel an extra surge of productivity. What I don't like is that it has encouraged the grind of people working far longer and harder than they should for no reason except economic gain which is fundamnetally unsustainable. When people feel tired, they should take a break, and not develop a habit of drinking caffeine every day to keeep going.…

I think people should be able to do what they want with their time. I don’t think people should have to sell their labor for a wage in order to live. I wonder what happens to your opinions about caffeine in a society where owners have little to no leverage over workers, or where the workers are generally also the owners.

What kind of tea do they serve in the gulag?

Re: Caffeine suppresses cerebral grey matter responses to chronic sleep restriction

#30

Post by ilaksh »

I love my caffeine. But caffeine is an addictive, highly profitable substance. So advertising it and trying to promote it as somehow having real health benefits is widespread.

I would not be surprised if routine consumption of caffeine was at least mildly detrimental to health.

I think some drugs have managed to gain a special place in our society . Advertising and lobbying warps our perception of these drugs.

I even saw a comment in this thread suggesting that if caffeine has a prolonged affect on you, then you have some unique genetics and it's essentially your problem, not the drug. Similar to the narrative about alcohol. It's interesting to compare that attitude to the way illegal drugs that can't advertise or lobby are viewed.

Post reply on HN