Is(are) considered to be an abnormality of rem sleep.

The one that is considered to be an abnormality in terms of REM sleep is the cataplexy. The cataplexy means that a person would likely experience his voluntary muscle tone to be loosen in which this would cause the individual to develop strong emotions.

well, i can't read it so i'll ask you questions about it : )

if you were a reader and you read the introduction, would you want to read more?

does it start with a question? if so, is it something you would want to read about?

and ask any friends or family for their opinion : )