Delayed sleep phase disorder

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

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Notion

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Science and technology

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What Wikipedia says

Delayed sleep phase disorder (DSPD), more often known as delayed sleep phase syndrome and also as delayed sleep–wake phase disorder, is the delaying of a person's circadian rhythm (biological clock) compared to those of social norms.

Excerpt from the Wikipedia article “Delayed sleep phase disorder”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

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