I find that regular wilderness backpacking trips in places without cell service accomplish this kind of reset in a fun, social (bring friends!) way that provides plenty of exercise and fresh air, with the added bonus of being a reasonably "normal" explanation/antidote to the social pressure of those "you're doing what??? I need to be able to reach you!"-type conversations.

There's the added bonus that being fully out of cell service effectively removes the ability to cheat altogether, though it seems inevitable at this point that satellite data will be invading the backcountry before long.

This is the way. I've spend few weeks back a wonderful time on remote islands in heart of Sulawesi, Indonesia. I even bought sim card for the operator that was supposed to have some coverage there (to stay connected a bit with kids back home). Suffice to say no phone signal for week and a half, I don't mean internet, not even sms.

Pretty amazing, one focuses on actual adventures, people, food, culture, coral marine life, diving and so on. It felt like spending 2 months there.

Then coming back to all this cheap pathetic crap was a proper 'bleh'.

yep, latest iphone has satellite texting that works almost everywhere. and soon t mobile is offering fully satellite data access :(