I can't say why, but I have read about it and there IS an explanation.
When I first started
vaping the dehydration was horrible, severe.
I thought, heck, if this continues I'll be up the creek as I don't drink much.
I cant even force myself to drink much. I am not drinking too much more than
before I started
vaping, but somehow, the severe extreme dry cotton mouth etc
has subsided. I am a chain vaper too.