Human Body Perspiration

I need documented information from trusted sources (medical, governmental), if is possible with clear data (table graphics, statistics) to show the human body perspiration water/liquid quantity.
I am interested especially during the night when the people sleep, but also for day activity is interesting (for comparison reasons).
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viki2000Asked:
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viki2000Author Commented:
OK, I forgot to add something very important: the documented source should be free.

The above links, most of them point to pdf documents ready to be download in exchange of some fees 35-50 euro, pounds,...
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chrisalisCommented:
The technical level at which you appear to require this information will normally only be available via learned journals (given your requirement for the use of trusted sources) and the vast majority of these are by subscription only; it is quite possible however that this doumentation would be available through a university or college library; many of whom have access to subscription journals.

Of course this information would then be freely avaiable to you as a bona fide member who is researching this topic.

Just a thought.
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nickg5Commented:
On this webpage, it discusses:
INSENSIBLE WATER LOSS DURING SLEEP
The term "insensible water loss" is discussed in connection with the respiratory system, water balance, and thermoregulation in both human physiology and animal physiology courses. Students are not always aware of the quantity of water lost through this channel and its significance to water balance. To help students appreciate this issue quantitatively, they are offered the following theoretical exercise. The exercise provides a basis for a discussion on water balance at different ambient conditions (dry/humid or hot/cold climates) or special physiological situations (artificial ventilation or premature babies in incubators). The exercise consists of a question, instructions for answering the question, and relevant data. The calculations require integration and manipulation of data from empirical equations and physiological measurements obtained from different sources.

http://advan.physiology.org/content/29/4/213.full

On that page, there are links to:
"table 1"
"table 2"
and I am able to click on those to see data.

It poses the question:
A person weighs him/herself before and after sleep. During 6 h of sleep, s/he loses about 230 g in weight. Why did they lose weight?

It gives instructions for the answer where you "can" click on table 1 and 2.
Then the complicated answer, the results and the conclusion.
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viki2000Author Commented:
Thank you for the input.
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