Increased Life Support (Radioactive)? How radioactive am I? Am I immune to myself?

[Raekai]

Hey, all.

This is my first non-Quick-Question post in a while. I'm tinkering around with some old ideas of mine. Namely, magic equals (weird) radiation. I was trying to create creatures that are radioactive and/or that rely/feed on radioactivity.

Increased Life Support (p. B139) says that you can be radioactive or require radiation! Neat! «Hmm, there are no rules here about that,» I thought to myself. «That must just be an oversight. But oh! There have recently been so many books that cover radiation. Maybe one has more info on— Nope.» But it's possible that I'm missing something.

So, if I have Increased Life Support (Radioactive), how radioactive am I? Mildly? Is that 1 rad/hour? 1 rad/week? 1 rad/month? Should I take Lifebane? What if I'm severely radioactive? Do I need Lifebane now? Should I take an Innate Attack? Am I immune to my own radiation? If not, how do I become immune to my own radiation? Wait, are my buddies of the same radioactive species immune to my radiation too?

Wait, but what if my Increased Life Support (Radioactive) means that I require a radioactive environment? How much radiation do I need? Does the radiation that I require also hurt me, or am I immune to radiation? Or should I take Radiation Protection? Or should I take Regeneration to heal my necessary radiation? Would this just be better modeled as a Dependency?

The idea is that the Spirit World is radioactive because mana is just (weird) radiation. Spirits are radioactive too, but not too much. A lot of the Spirits love nature, so they don't want to outright destroy it. Although, they do understand the balance between life and death. On this particular planet, we also have a Proto-Human species that are bonded to the Spirits by the Creators. So, they feed off of the radiation, which helps them power their magic, and then they come to actually be radiation-dependent. Maybe they don't need radiation all the time, they might just need it once-in-a-while. I don't know what's somewhat reasonable (without too much of outright hand-waving and yelling "because magic" again and again). Although, maybe the environment on the planet is somewhat radiation-resistant too.

Any ideas are helpful! I'm looking for general solutions and my-situation-specific solutions.

Hopefully I can attract some of the people who have worked on those supplements and articles that have been heavily dealing with radiation.

Thanks in advance! Y'all are great.