Why do you get an annual physical? I'm also an American with good health insurance (PPO not HMO if that makes a difference). My GP is at Stanford, although she

Why do you get an annual physical? I'm also an American with good health insurance (PPO not HMO if that makes a difference). My GP is at Stanford, although she only seems to practice once a week or something (it can be hard to get an appointment). I go to the doctor when something's bothering me, but that's about it. It's never been suggested that I go regularly. (I'm not quite 40 yet, so maybe that's the difference?) My dentist on the other hand, sends me a postcard every 6mo.. :)