FactualFrank wrote: ↑Wed May 27, 2020 12:37 am
If you think drinking 3 pints of water is anywhere near too much, then you're very wrong.
It doesn't sound anything like they are drinking too much water.
I can easily drink 3 pints of water a day. Especially if, for example, I've been exercising.
It is the arbitrary target which is wrong. There is no need to set yourself any other target than to do drink what is required to keep you from being thirsty. If you are not thirsty, you are certainly not dehydrated.
MalaysiaMo wrote: ↑Wed May 27, 2020 3:33 am
"If you're not thirsty, don't drink. Ever."
Don't agree with that at all. Being thirsty is your brain telling you that you're dehydrated, which is a dangerous state to be in (much more immediately dangerous that being hungry) - especially as dehydration can cause lasting damage to internal organs, such as the kidneys and the brain. You should drink water to avoid becoming thirsty, rather than in response to being thirsty.
Three pints of water per day does not sound like too much to me. Difficult to generalise with these things - but the recommended daily water intake for an adult is around 2 litres per day (or around 3.5 pints). The optimum quantity varies of course according to body size, age, level of activity, elevation, weather etc.
Having said that overhydration (water intoxification) through drinking or retaining too much water is also a problem as it impacts the levels of salts and electrolytes - and thus chemical reactions - within our bodies upon which our health depends.
A good guide is the colour of your urine. The general rule is if it is a champagne-like colour then you're fine (correctly hydrated). If it is clear (like water) then you're overhydrated. If it is dark yellow then you're dehydrated.
I'm struggling to find how or why you disagree with me Mo?
You've written some good information about hydration but none of it contradicts my advice that you do NOT need to drink unless you are thirsty.
There, however, a misnomer in what you've said about being thirsty being
"your brain telling you that you're dehyrdated". This isn't the full picture - it is misleading information which has been made up by soft drinks companies.
Thirst doesn't come on and off like a switch. It builds up gradually. You will be thirsty
before you are dehydrated.
Being thirsty is your brain's way of telling you that you should take on water. Your brain doesn't wait until you are "dehydrated" before making you feel thirsty, it gradually makes you a little bit thirsty to prompt you to drink in order to prevent this and if you don't do so you will become inceasingly thirsty. It's an incremental thing, not one or the other.
The idea that thirst and dehydration are the same thing has been pushed remorsely by companies pushing bottled water and so-called "energy drinks" for years. There is no proof for this whatsoever.
Being thirsty does NOT -necessarily- mean you are "dehydrated". It just means you should have a drink. Of course, if you really are dehydrated you'll be very thirsty.
In normal circumstances drinking will very quickly become uncomfortable once you have taken on what you need. This is your body telling you to stop drinking. In most people's case it is after drinking something the size of an average glass or mug of tea. It might be a bit more, it might well be after as little as half a glass. We know instinctively when we are no longer thirsty - it very quickly becomes uncomfortable to drink any more.
If anybody is drinking past what is comfortable to drink in order to meet a target (eg. 3 pints) then they are drinking unnecessarily. There are no benefits to drinking unnecessarily but there are dangers - as you have pointed out. By and large anybody drinking too much will most likely only be wasting their time making trips to the bathroom.
What you've said is largely very sound information, particularly the advice about the colour of your pee.
Here's a challenge for you Mo - follow my advice for a week and only drink when you're thirsty. And also note the colour of your pee. Unless you do any strenuous sport (which CAN make you dehyrdrated) you'll find it's remarkably consistent.
Nobody leading a normal life needs to drink some kind of arbitrary amount of water per day or set themself goals of how much to drink.
Drink when you're thirsty. Don't drink if you're not thirsty. It's that simple.