One of the side topics of Vitals is the existence of widespread and aggressive opposition to lifespan-extending research. This is something I don't understand, that I've always considered to be a crazy position based on either religious belief (don't offend God) or an extreme conservatism like Rousseau's where anything remotely new, man-made or technological is worse than man's "natural state" (note this is often an environmentalist/green position, so although I call it conservatism it's not necessary what you'd think of as the right end of the political spectrum).
A last note on Vitals is that it's set in Seattle and San Francisco (so far - only 100 pages in). I'm a sucker for settings I recognize. I like Monk and Charmed especially when they show places I know.