SSM is poorly understood. As of 2008, there is little to no information regarding risk factors or prevention, though it is believed to be most prevalent among young to middle aged adults. Distribution among the general population and by gender is unknown. About 5% of the clinical population may be affected, though that figure is subject to sampling bias.
Sleep state misperception
Body image disturbance
Fear of flying
Fear of falling
Listener fatigue
Pathological lying
Fear of medical procedures
Directed attention fatigue