Some health topics might lend themselves to AdSense ads or even affiliate sales, but others are likely to be a bust. For example, an article on selecting home blood-pressure monitors might do well (since users are researching such devices), but an article on gall-bladder surgery probably wouldn't (since someone with a diseased gall bladder needs a doctor, not a DIY gadget).
So what do you do if you're a publisher of a site about health care (or anything else)? You publish articles on a wide range of topics, building a "best of breed" site in your field. Some of the topics will be profitable, and others will be loss leaders. At the end of the month, your total revenues (not how much you earned on any given page) are what matter.