The inflammation thing is the hot new thing; you're supposed to floss your teeth, as there's some correlation there. My totally informal 'my public health coworker spouts off a lot' opinion is that there's a whole lot of numbers and everyone takes statins right and left, and still no one is really sure what's going on.

Don't smoke, and aim for regular exercise :)

I echo the above question but add my own spin: does looking into all of this make you feel better or worse? I wonder if finding out that recommendations aren't as based in solid science as you might have hoped will be less helpful than you've wanted?