I once took an anatomy cuorse. Boring as all get out, but a lovely old teacher. I remember him saying that, if you want to know anything about your body and what it's doing, the last person you should ask is a physician. Ask a physiologist. In the end, all physicians learn is not to think through basic priciples of how things work, they just learn to recite "rules" their teachers have memorized.

I liked hearing that because it confirmed my own observation--and has done ever since--that physicians are not a very bright species and are often quite dangerous.