> Instead of drinking more, the crew were drinking less in the long run when getting more salt. So where was the excreted water coming from? “There was only one way to explain this phenomenon,” Dr. Titze said. “The body most likely had generated or produced water when salt intake was high.”

That's odd, what if simply a high-level of sodium reduces your perspiration? Wikipedia[1] says "The volume of water lost in sweat daily is highly variable, ranging from 100 to 8,000 mL/day." so between 0.1 and 8 liters per day! [2] even says 10 to 12 liters per day!

If on average over a long period the subjects drank let's say exactly 1 liter per day and peed strictly more than 1 liter of water, then I'd agree with what this Dr. said, but neither this nytimes article, nor the 2 papers mentioned [3][4] mention the word perspiration or sweat in their abstracts/summaries, why not?

Off-topic: Did nytimes.com made it hard on purpose to select text from their article? On Chrome and Firefox I can't select text easily, only Edge lets me.

[1] https://en.wikipedia.org/wiki/Perspiration

[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2267797/

[3] https://www.jci.org/articles/view/88530

[4] https://www.jci.org/articles/view/88532