From being in several life-and-death situations, you'd be remarkably surprised how far will-power and adrenaline will get you.
But no. The advice is the opposite: don't give up just because you think you should be dead; do literally anything else other than give up. Preferably, do the things you've been trained to do, but even if you just stay awake and fight for your life ... that is preferrable to giving up.
But no. The advice is the opposite: don't give up just because you think you should be dead; do literally anything else other than give up. Preferably, do the things you've been trained to do, but even if you just stay awake and fight for your life ... that is preferrable to giving up.