Sometimes out of spite for the game, I'll sit around at 1 hit point with some life regen waiting for the 23 million poison damage from hell unravellers or spiders to wear off. It seems to me I can wait indefinitely because it stops causing damage at 1 hp? If I chug a belts worth of super healing potions, it seems to wear off faster. Is this just my imagination? I'm guessing the duration is unrelated to how much life it takes?