Smiling Maniacally.: What I hate about pregnancy?:
Things you can and cannot eat are a perfect example - caffeine, sushi, alcohol, soft cheese, smoked salmon, and hollandaise sauce. Guess which one (1) I actually gave up throughout the entire pregnancy because only *one* of these actually posed a danger to the baby. You know, based on actual studies versus theoretical inferences.
And childbirth - there is so much mis-information out there about childbirth, labor, delivery, etc. and a lot of it is based, again, on theoretical inferences made back in the 1950s and 60s (like whether or not you should be able to eat/drink while you're in labor. Story in the NY Times about that today, in fact). We were interviewing post-partum doulas last week and I mentioned that I was hoping to avoid a c-section, and the doula replied, well, make sure you don't have an epidural then.
So that pretty much ended that interview. Correlation is not causation people.