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Dehydration's role in learning and memory

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Re: Dehydration's role in learning and memory

#31

Earlier quoted context omitted.

Yea 2.5-3l seems to be the proper amount. Only drawback is having to pee every 30 minutes.

If you're peeing that much then evidently your body is not using all that water you're consuming. Either it's more than you need, or you're lacking in electrolytes and should increase electrolyte intake alongside the water.

Your body doesn’t use up water turning it in to nothing. You are meant to pee out what isn’t lost to sweat.

Re: Dehydration's role in learning and memory

#32
post #25

Earlier quoted context omitted.

200ml every waking hour? Seems excessive.

it's a matter of habit. 3l of liquids per day is what various doctors in different (european) countries have recommended me over the years.

Are we sure this is not just harmless and arbitrary information being parroted? Do we have verifiable sources other that anecdote? I find it hard to believe that there is just a single value for water intake across the massive biological spectrum that is humanity and expect to see a range when this conversation comes up. You're also getting water from foods, which I am sure is not being accounted for. Reminds me of the 10k steps a day that just happened to be "correct enough" to be believed and acted on. The truth is much more nuanced and depends on a number of factors in a person's physical health.

Without concrete verifiable findings, the best we can do is learn to pay attention to our bodies and drink maybe a little bit more water than we think we need to.

Re: Dehydration's role in learning and memory

#33
post #5

The more I age the more important hydration turns out to be. Gastric issues, joint pain, blood pressure, weight problems, kidney stones, bad breath, constipation.. and now brain issues too? Do yourself a favor, and start drinking a ton of water!

Not too sure - an overload of water can actually be dangerous i think.

Re: Dehydration's role in learning and memory

#34

Please correct me if wrong but this has almost nothing to do with broad human dehydration or hydration. I think it is an interesting finding and it would be interesting to hear more about the implications from someone in the field. I only broadly understand this is some kind of peeking behind the curtain of some process that was not fully understood before

You are correct, title is wrong. Blame this communicator. It feels that the person that wrote the text lacks understanding of chemistry or oversimplified too much. More appropriate term for removal of water around an ion is “desolvation”.

Re: Dehydration's role in learning and memory

#37

Please correct me if wrong but this has almost nothing to do with broad human dehydration or hydration. I think it is an interesting finding and it would be interesting to hear more about the implications from someone in the field. I only broadly understand this is some kind of peeking behind the curtain of some process that was not fully understood before

Exactly, when I read the article the first thing I thought is "why is this on hacker news??"

Re: Dehydration's role in learning and memory

#38
post #5

The more I age the more important hydration turns out to be. Gastric issues, joint pain, blood pressure, weight problems, kidney stones, bad breath, constipation.. and now brain issues too? Do yourself a favor, and start drinking a ton of water!

Not too sure - an overload of water can actually be dangerous i think.

Jumping in here with relevant experience - because you're absolutely right.

In 8th grade (~16 years ago) my substitute biology teacher organised a "Water drinking competition" poised to elevate our understanding of stomach capacity, etc.

Two of us went to hospital, and ~5 (including myself) had to take multiple days off of school and recover.

It's very dangerous. He lost his job.

Re: Dehydration's role in learning and memory

#39

Earlier quoted context omitted.

Not too sure - an overload of water can actually be dangerous i think.

Jumping in here with relevant experience - because you're absolutely right. In 8th grade (~16 years ago) my substitute biology teacher organised a "Water drinking competition" poised to elevate our understanding of stomach capacity, etc. Two of us went to hospital, and ~5 (including myself) had to take multiple days off of school and recover. It's very dangerous. He lost his job.

There was a lady who died from the same thing:

https://abcnews.com/GMA/jury-rules-radio-station-jennifer-st...

Re: Dehydration's role in learning and memory

#40
post #32

Earlier quoted context omitted.

it's a matter of habit. 3l of liquids per day is what various doctors in different (european) countries have recommended me over the years.

Are we sure this is not just harmless and arbitrary information being parroted? Do we have verifiable sources other that anecdote? I find it hard to believe that there is just a single value for water intake across the massive biological spectrum that is humanity and expect to see a range when this conversation comes up. You're also getting water from foods, which I am sure is not being accounted for. Reminds me of t…

I’ve always been extremely suspicious of constant water consumption. No other mammal seems to do this. Even the ones that require a lot of water like horses will only drink when they’re thirsty or while eating.
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