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The original definition of sleep paralysis was codified by Samuel Johnson in his A Dictionary of the English Language as nightmare, a term that evolved into our modern definition. Such sleep paralysis was widely considered the work of demons , and more specifically incubi , which were thought to sit on the chests of sleepers.
A bad penny always turns up; A bad workman blames his tools; A bird in the hand is worth two in the bush; A cat may look at a king; A chain is only as strong as its weakest link; A dog is a man's best friend; A drowning man will clutch at a straw; A fool and his money are soon parted [4] A friend in need (is a friend indeed)
Sleep paralysis is a state, during waking up or falling asleep, in which a person is conscious but in a complete state of full-body paralysis. [1] [2] During an episode, the person may hallucinate (hear, feel, or see things that are not there), which often results in fear. [1] [3] Episodes generally last no more than a few minutes. [2]
We get into a pattern of waking and sleeping that sees us opening our eyes in the middle of the night. The room is dark, but sure enough, the clock reads the same time as it did the night before...
Hypnopompia (also known as hypnopompic state) is the state of consciousness leading out of sleep, a term coined by the psychical researcher Frederic Myers.Its mirror is the hypnagogic state at sleep onset; though often conflated, the two states are not identical and have a different phenomenological character.
The word hypnagogia is sometimes used in a restricted sense to refer to the onset of sleep, and contrasted with hypnopompia, Frederic Myers's term for waking up. [2] However, hypnagogia is also regularly employed in a more general sense that covers both falling asleep and waking up.
Catathrenia begins with a deep inspiration. The person with catathrenia holds his or her breath against a closed glottis, similar to the Valsalva maneuver. Expiration can be slow and accompanied by sound caused by vibration of the vocal cords or a simple rapid exhalation. Despite a slower breathing rate, no oxygen desaturation usually occurs.
Sleep walking may involve sitting up and looking awake when the individual is actually asleep, and getting up and walking around, moving items or undressing themselves. They will also be confused when waking up or opening their eyes during sleep. Sleep walking can be associated with sleeptalking. [19]