Some of these aren't even up to date. Lets stop acting like we're health experts here. If your doctor is still making you do "turn and cough", then your doctor is using out of date practices (source: my GF is a doctor). Similar to another person's post above, she cringes at posts like this. You SHOULD go to the doctor to get check up each year, but you should not just go get every test under the sun just in case. There's a reason when you go in for your yearly check up, the doctor does what they do. Perhaps it's more important in this discussion to say that there's a reason your doctor doesn't do every test under the sun on these checkups.