i prefer to both have a health bar but with regeneration (regeneration will depend on the injury)
example when u got shot:
it will always depend on the shot and the bullet type
it can be slow, or fast regeneration
visit the hospital for surgery LOL
put bandages to prevent bleeding
other ideas for injuries
Example when u fall:
of course your legs will break
and your running animation will be different
like hopping
crawling if your legs are greatly injured
fighting fist to fist:
bruisses :DD