Dont forget that you need to cool your body, so you sweat when you work out. Also, as you breathe harder, you'll loose more moisture through your lungs (the water activity of your whatever parts in the lungs being higher than that of dry air.)
If you were to exercise outdoors during a cold rain, you'll probably not loose any water at all.
But what do I know? I've never exercised in my life.
My uncle, a top professor at a top 10 US research university didn't have a phone until two years ago. He did fine. In fact, he attributes his significantly higher productivity to not having a phone.
Donald Knuth gave up email in 1990. Too distracting. (I dunno but I wouldn't think he has a cellphone)
When I started grad school in '07 I wanted to forgo a cellphone. I couldn't. My advisor was even annoyed I held out on a smartphone for as long as I did (caved in 2010).
In 2013, sick of my smartphone I went back to a dumbphone. It was great until 2015 when I started working at a place so crappy I have to routinely tether my phone for productive internet access.
My point: it's very possible to live w/out a cell phone. Frankly it's not even hard (I "forget" my phone at home). However, unless you're tenured or are otherwise your own boss, you'll be forced to have one.
The former CEO of google is bff with the clintons and was heavily involved with Obama's campaign. Good for him, I guess. But the previous administration did very little for internet privacy and rights.
Dont fool yourself that the problem is the "current" administration and the next administration from the "good guys" will solve everything.
Love my Fuel. Wish I could still use it as a dialy driver (too expensive to run electrically). Management really destroyed you guys, eh?