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Rheum from a cat's eyes. Rheum ( / ruːm /; from Greek: ῥεῦμα rheuma 'a flowing, rheum') is a thin mucus naturally discharged from the eyes, nose, or mouth, often during sleep (contrast with mucopurulent discharge ). [ 1][ 2][ 3] Rheum dries and gathers as a crust in the corners of the eyes or the mouth, on the eyelids, or under the nose ...
Sleep on When something of value is underestimated or overlooked but is deserving of attention. Originated as early as the 1500s from the phrase "sleep on it" when it was believed that once well rested, a better decision could be made on an important matter. "People always sleep on this song." "Their talent is slept on." Sleeping on, Slept on [165]
Lagophthalmos. Lagophthalmos is the inability to close the eyelids completely. [ 1] Blinking covers the eye with a thin layer of tear fluid, thereby promoting a moist environment necessary for the cells of the exterior part of the eye. The tears also flush out foreign bodies and wash them away.
Hypnagogia. Hypnagogia is the transitional state from wakefulness to sleep, also defined as the waning state of consciousness during the onset of sleep. Its opposite state is described as hypnopompia – the transitional state from sleep into wakefulness. Mental phenomena that may occur during this "threshold consciousness" phase include ...
Computer vision syndrome. Computer vision syndrome ( CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
Dream interpretation is the process of assigning meaning to dreams . In many ancient societies, such as those of Egypt and Greece, dreaming was considered a supernatural communication or a means of divine intervention, whose message could be interpreted by people with these associated spiritual powers. In the modern era, various schools of ...
Hypnic jerk. A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment. Hypnic jerks are one form of involuntary muscle ...
Discerning the meaning of "gharāniq" is difficult, as it is a hapax legomenon (i.e. used only once in the text). Commentators wrote that it meant the cranes . The Arabic word does generally mean a "crane" – appearing in the singular as ghirnīq, ghurnūq, ghirnawq and ghurnayq , and the word has cousin forms in other words for birds ...