How much water per hour?

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Davidc

Guru
Location
Somerset UK
I would never question the adverse effects of dehydration on performance, athletic, mental, or health in the longer term. When exercising, particularly when it's hot, dehydration can be dangerous. As you say there is much peer reviewed material on this and as far as I'm aware universal agreement.

What gets less prominence is the research and evidence about over hydration which can be and sometimes is fatal.

The issue is the rubbish written and passed on about what to do about dehydration and how to avoid it.

Google may not produce as much as you'd like since much of the work predates the web (1980s). Some was done to debunk the myths originating from misinterpretation of a 1945 public health publication in the USA. It's that misinterpretation which is still around and creates the myths seen in earlier posts.
 

Linford

Guest
Don't ya just love these peeing contests :biggrin:
 
Lets try an experiment....
Drink 3 pints of water and time the urine output
Drink 3 pints of beer and time the urine output

Then state categorically that there is no diuretic effect!
 

Spinney

Bimbleur extraordinaire
Location
Back up north
"Is it possible to drink too much water?" - yes it is: http://en.wikipedia.org/wiki/Hyponatremia - it can be fatal.
The "right amount" is personal, though - if my boyfriend & I got out for a long cycle together, with two full 500ml bottles each, there's some chance that I'll drink both of mine and pinch his second one - with no harm to either of us. He acknowledges that he seems to require less fluid than "normal" though - but it seems that this is "just the way he is".
This sounds just like me and my partner as well!
 

Davidc

Guru
Location
Somerset UK
Lets try an experiment....
Drink 3 pints of water and time the urine output
Drink 3 pints of beer and time the urine output

Then state categorically that there is no diuretic effect!
Let's try another one.

Try reading the earlier posts in the thread and the referenced articles and then you'll avoid making a complete fool of yourself with stupid responses.

(If you consider downing 3 pints of beer to be moderate alcohol consumption can I suggest you urgently seek professional help).

Sorry- it does still not mention the diuretic effects of these drinks when dehydrated.

The statement stands, beer, coke, coffee and tea are diuretics, and if you are dehydrated will exacerbate the situation

It will be interesting to see your references for the second part of the second paragraph!

I'll also just point out that coke (the full sugar version) is used as a rehydrating medium, albeit at 50% concentration and no fizz, during disaster relief operations. It's hugely more effective than water.
 
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Oh dear, another assumption not borne out in reality, personal insults and then contradicts his own post!



Chiefly the contents of coke contain electrolytes, potassium and other essentials that aid the process of recovery - that is why it is more effective than water!
Did Barbara Rolls, not tell you that?

Now in your infinite wisdom and that of your goddess of dehydration, why do you think they don't use it "neat" and dilute it?

Otherwise let me get this right...
You are stating that there is no difference in the effects of diuretics if one is hydrated and dehydrated
You are fully aware of the mechanism by which these drinks affect diuresis
You are stating that beer does not have a diuretic effect
You are stating that Caffeine has no diuretic effect
 
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