I have to disagree that it's not dehydrating, but I'm no doctor/scientist and can't prove it scientifically. But, when I pay attention to what my body is telling me, I can't write off an extremely dry mouth as a "sensation" of vaping. I think it's also very important to understand that dehydration in and of itself has varying degrees. We do things everyday that cause dehydration, that are normal and part of life, and that is why we drink water to rehydrate. It's a constant cycle. My concern is that vaping may cause an increased level of dehydration, even at rest, that we normally wouldn't experience, and consequently probably aren't used to.
I was last tested a couple weeks ago, and my body water content was measured at around 54%. A bit low, but an improvement from 51% 6 months ago. No, I'm not saying it's because of vaping, just to illustrate that my water content level is below optimum, and could account for such things as increased dry mouth. If you don't experience a dry mouth, you could be at a much higher water content level.
But be that as it may, I can't just chalk it up to a sensation. Even hours after chain vaping (experimental), my mouth is still very dry. If it were a sensation, it should go away naturally. After drinking water for 20 minutes, my mouth feels normal again.
Also, I apologize for not being more clear. I'm in no way trying to imply that vaping causes extreme dehydration and is life threatening in the short term. But based on my own experience and how my body feels while vaping, it is more significant than I knew going in.
I also offer a
link from the Mayo Clinic. In particular, look at the symptoms for mild dehydration.
