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Nightmare - Historic use of term

Nightmare - Historic use of term: Encyclopedia II - Nightmare - Historic use of term

Nightmare was the original term for the state later known as waking dream (cf Mary Shelley and Frankenstein's Genesis), and more currently as sleep paralysis, associated with rapid eye movement (REM) periods of sleep. The original definition was codified by Dr Johnson in his Dictionary and was thus understood, among others by Erasmus Darwin and Henry Fuseli, to include a "morbid oppression in the night, resem ...

Nightmare: Encyclopedia II - Nightmare - Historic use of term

Nightmare - Historic use of term

Nightmare was the original term for the state later known as waking dream (cf Mary Shelley and Frankenstein's Genesis), and more currently as sleep paralysis, associated with rapid eye movement (REM) periods of sleep. The original definition was codified by Dr Johnson in his Dictionary and was thus understood, among others by Erasmus Darwin and Henry Fuseli, to include a "morbid oppression in the night, resembling the pressure of weight upon the breast."

Such nightmares were widely considered to be the work of demons, which were thought to sit on the chests of sleepers. In Old English, the being in question was called a mare or mære (from a proto-Germanic *marōn, related to Old High German and Old Norse mara), whence comes the mare part in nightmare.

This type of waking dream is called mareridt in Danish, cauchemar in French, pesadilla in Spanish, Alpdruck or Alptraum in German, incubo in Italian, and kanashibari in Japanese.

Various forms of magic and spiritual possession were also advanced as causes. In nineteenth century Europe, the vagaries of diet were thought to be responsible. For example, in Charles Dickens's A Christmas Carol Ebenezer Scrooge attributes the ghost he sees to "... an undigested bit of beef, a blot of mustard, a crumb of cheese, a fragment of an underdone potato..." In a similar vein, the Household Cyclopedia (1881), offers the following advice about nightmares:

"Great attention is to be paid to regularity and choice of diet. Intemperance of every kind is hurtful, but nothing is more productive of this disease than drinking bad wine. Of eatables those which are most prejudicial are all fat and greasy meats and pastry... Moderate exercise contributes in a superior degree to promote the digestion of food and prevent flatulence; those, however, who are necessarily confined to a sedentary occupation, should particularly avoid applying themselves to study or bodily labor immediately after eating... Going to bed before the usual hour is a frequent cause of night-mare, as it either occasions the patient to sleep too long or to lie long awake in the night. Passing a whole night or part of a night without rest likewise gives birth to the disease, as it occasions the patient, on the succeeding night, to sleep too soundly. Indulging in sleep too late in the morning, is an almost certain method to bring on the paroxysm, and the more frequently it returns, the greater strength it acquires; the propensity to sleep at this time is almost irresistible."