You wake up in the middle of the night unable to move a muscle. Panicked, you feel a presence in the room and see the image of a ghost or a demon gliding toward you. The figure approaches you, sits on your chest and puts its hands around your neck. You actually feel it strangling you and you try to scream, but you can't even open your mouth. This may sound like something out of a horror movie, but it is an actual phenomenon many people describe experiencing.
Rebecca Ramirez. Emily Kwong. Art historians point to images like John Henry Fuseli's painting "The Nightmare" as early depictions of sleep paralysis. Josh Smith says it all started when he was five years old.
Vincent Mysliwiec, principal investigator and lead author, and U. Army Medicine sleep medicine specialist. Although previous authors recognized some of the unique sleep disturbances seen in combat survivors, the constellation of findings of disruptive nocturnal behaviors, nightmares and rapid eye movement, or REM, sleep without atonia had never been linked together.
Narcolepsy is a sleeping disorder that affects 1 in about 2, people in the United States. Many people are unaware that they have this disorder, and it goes undiagnosed. There is no cure for this disorder, but it is treatable. People with narcolepsy do not spend a greater amount of time asleep compared.