The insurance companies don't have medical training either. I know far, far more about my body's medical situation than them.
Doctors and medical research may supply me with additional medical knowledge, but the insurance company can go to hell. They don't know a damn thing about any of this.
I do have a question about one thing you said:
> I know better about what's preventative and what's not than them.
How is that? From your profile I don't see any medical training.