User blog comment:Deafro/Are Hunters Immortal?/@comment-98.109.162.219-20131209030130

I don't think that everybody's aura heals them because so far we've only seen Jaune's aura heal him. When cells regenerate, they still age and show signs of aging. And it doesn't seem like people can just use Aura 24/7. If that is so, why wouldn't they just have a person go to every hospital and activate every single baby's aura? It seems like aura needs to be recharged and activated semi automatically or manually, just like chakra in the Naruto universe. Also, in the first staged fight between Cardin and Jaune, Aura seemed to be used as synonym for hit points and stamina; which to me kinda doesn't make sense... (So when Jaune was walking around in the forest with Pyrrha, before he knew about Aura, he had 0 hit points? {Well I guess that's why he got beat up by the tree branch})

I do believe (and I really want this to be true) that time either moves slower on Remnant (due to gravity, solar rotation, etc) or people age slower due to their bodies evolving differently to adapt to the RWBY universe's "strange" enviroment.