OOC2
Yes, yes it does. However, reaching 0hp "only" risks unconsciousness, not death. You start risking death at fully negative hp, -10 hp if you start with 10hp. You have to roll to stay alive at -1x hp, -2x hp, -3x hp, and -4x hp. At -5x hp you die. And at -10x hp your body is completely destroyed.