Small, implanted labs-on-a-chip will eventually solve the data gathering problem. Software and lots of data (both your own and others suitably like you, where suitably is a thousands of times more specific than it is today) will identify the difference that are "normal" versus those that are "unhealthy".

This will upend the medical industry, which is one of the most inertial industries in existence. Worse, all the regulations that protect us will ultimately be used to protect it, in far worse ways than the whole RIAA/MPAA thing.

I hope technology can beat it.