Many people complain of feeling paralysed while they are partially awake but dreaming. This may be due to the fact that voluntary movements are inhibited during periods of the dream process. All brain signals to the voluntary muscles are stopped. Therefore if we become slightly awake and attempt to move at that time we feel paralysed. This is not sensed as a problem if we are unconsciously involved in a dream. If enough self awareness arises in the dream state, then awareness of the inability to move may occur, along with the anxiety this can arouse. In fact this is probably only a problem to people who are frightened of the paralysis, as for most people, active dreams manage to break through the inhibition enough to cause mild movements and vocal sounds.