Chinese: Old Wives Tales A long time ago I heard someone say:

"玩火会尿床"

Which I instantly recognized is very similar to some 'old wives tales' in English. In English there are things like:

from Wikipedia:


  Cracking knuckles gives arthritis.
  
  Don't go outside with wet hair or you will catch a cold.
  
  Don't swallow gum or it will stay in your stomach for seven years.
  
  Don't make silly faces or it will make the silly face permanent.


"Don't play with fire or you will wet the bed," seems pretty similar, no?

Questions:

What are Old Wives Tales called in Chinese?

Where can I find a list of similar Chinese old wives tales?

Or 

What are some common Chinese old wives tales?
I'm not sure we have a saying for "old wives tales".
For the ones that works we call them 偏方 (Folk prescription), others are considered as 流言, 谣言 (rumor), 伪科学 (pseudoscience).

One of such saying is that you cannot wash your hair during menstrual period.
Another is that you cannot eat certain food (e.g., orange and seafood) together, otherwise they'll become toxic.

You can find many of them here. Though it includes not only Chinese stories.