Yeah, you could do a [i]ton[/i] of push-ups. That’s definitely what we’re talking about.

Unclear really, there's lore on how in the dark ages guardians such as the drifter would be getting revived after starving to death and still be starving upon revival. I think at some point it mentions the same with gaurdians exposed to immense radiation levels

I think it depends, the Drifters experienced dying of starvation and was resed still hungry. That could be the case because their light and ghosts light were being messed with. A ghost without with light can't revive a guardian, another ghost is part of it too i.e. darkness zones. A weakened ghost may have problems reviving, either not enough light and/or can't channel it properly. Falling from the tower is a great example for this as well, during the Warlord era ghost were often targeted. I'd say under extreme circumstances you'll still be exhausted.

If your body can be completely reconstructed from complete disintegration, I'm certain a rez could (and probably would) restore stamina as well. No more creepy suggestive rez threads please.