KiasuParents - Parenting in Singapore

Does anyone know if these have anything to do with genes, diet, etc?

Pls share if you know more. Thanks.

Sleepwalking/talking in excess can be considered a sleep disorder, but is otherwise generally normal (even if it is not very common) and does not pose a serious health/psychological threat to children.

There is some evidence that seems to indicate weak hereditary if I remember correctly, but can't seem to find the link where I first read it. Try wikipedia, lol http://en.wikipedia.org/wiki/Parasomnia