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Polysomnography (PSG) is a multi-parameter type of sleep study [1] and a diagnostic tool in sleep medicine.The test result is called a polysomnogram, also abbreviated PSG.The name is derived from Greek and Latin roots: the Greek πολύς (polus for "many, much", indicating many channels), the Latin somnus ("sleep"), and the Greek γράφειν (graphein, "to write").
Polysomnography, the "gold standard" method for sleep tracking that requires attaching electrodes and monitors to the patient as they sleep, was developed in the late 1950s. [ 5 ] [ 6 ] [ 7 ] It is considered by sleep researchers as providing the most accurate sleep data, however, it is an expensive, often uncomfortable experience for patients ...
Sign with text: Sömnförsök pågår (Sleep study in progress), room for sleep studies in NÄL hospital, Sweden. A sleep study is a test that records the activity of the body during sleep. There are five main types of sleep studies that use different methods to test for different sleep characteristics and disorders.
These vowels are sometimes used in Hindi too, as in डॉलर dôlar ("dollar"). [52] IAST transliteration is not defined. In ISO 15919, the transliteration is ê and ô, respectively. Kashmiri Devanagari uses letters like ॳ, ॴ, ॶ, ॷ, ऎ, ऒ, औ, ॵ to represent its vowels (see Kashmiri language#Devanagari).
The information includes sleep onset time, sleep latency, number of awakenings in a night, time in bed, daytime napping, sleep quality assessment, use of hypnotic agents, use of alcohol and cigarettes, and unusual events which may influence a person's sleep. Such a log is usually made for one or two weeks before visiting a somnologist.
The main use of a hypnogram is as a qualitative method to visualise the time period of each stage of sleep, as well as the number of transitions between stages. Hypnograms are rarely used to provide quantitative data, however it has been suggested that statistical evaluation can be carried out using multistate survival analysis and log-linear ...
In recent years, due to an increase in literacy and connectivity, the interchange of languages has reached new heights, especially due to increasing online immersion. English is the most widely used language on the internet, and this is a further impetus to the use of Hinglish online by native Hindi speakers, especially among the youth.
Standard Hindi (also High Hindi, Manak Hindi) is the language of the government and is one of the official languages of India, Standard Urdu is the state language and national language of Pakistan, Dakhini is the historical literary dialect of the Deccan region, and Rekhta the "mixed" Hindustani of medieval poetry. [12]