umm...im no expert or anything but i think this whole vaping causes dehydration business is either a myth or is very much overblown
i mean maybe it causes some minor loss of water to the body but not enough to really affect you
i've been a distance runner for years and haven't noticed any uptake in water, etc since i started vaping
in any case, i dont think you need to go out and be all having a half gallon of water on your desk, if you are dehydrating the body will let you know via thirst
No it's not a myth or overblown. Your assessment is far off base for many reasons; but assuming that you take good care of yourself as a long distance runner, you would seemingly be replenishing the fluids and metabolites you need. Not everyone does this.
Many people do not drink a lot of water by nature and add to that drink coffee, alcohol and/or soda. The body will cope to a point -- I went years without drinking water despite heavy soda or coffee use...and smoking.
Then there is the proverbial straw that breaks the camel's back... be it extra coffee or vaping. Other people have health issues or medication that dehydrate them. They don't feel it until the push
their limit. By the time you feel true dehydration you're sick -- avoid this like the plague. It is very unpleasant. But it is also probably uncommon in most relatively healthy vapers.
The bottom line is drink more water with vaping, esp. if you feel you need it or are not getting the recommended daily amount. Don't rely on how your mouth feels rely on how you feel and how good your vapes are (which involves other factors but losing taste can be a sign). Also notice your skin. If you can pinch the skin on the back of your hand and it doesn't snap back as quickly, you're dehydrated to varying degree. And of course dry skin and lips could be external or internal...it is often both.
I even find some dehydration with the VG if I chain vape.
TL; DR H2O is your friend and I've learned to live with it -- even though I'm not a huge fan of its taste. It's also essential for new vapers who quit smoking...helps eliminate toxins, gunk in the lungs etc.