I know the this thread should be in the Dream section but many people ask exactly what it is, so here is the description as I have found it. In Merriam Online dictionary:-
In the Elements Encyclopedia of the Psychic World it describes the Hag as:-hag
3 entries found for hag.
Main Entry: 1hag
Etymology: Middle English hagge demon, old woman
1 : an ugly, slatternly, or evil-looking old woman
2 archaic a : a female demon b : an evil or frightening spirit : HOBGOBLIN
3 : WITCH
- hag·gish /'ha-gish/ adjective
We generally refer to the Old Hag Syndrome when someone has the experience of waking up from sleep and being unable to move, often feeling that someone or something is sitting on them. People report being totally paralysed but can still see, hear, smell and feel. This is sometimes accompianied with the sighting of an old woman - hence the old hag!An apparition reporte to resemble an ugly old woman with tangled hair, rotting teeth, a hooked nose, mad eyes and claw like fingers.
However, scientists have proved that there are many explanations for this phenomenon, indigestion being one of them! Most commonly they say that general sleep disorders, repressed tension or sleep paralysis is the cause! Whilst I agree that these can explain the majority of cases, I do not think they can explain them all!