Retrieving "Insomnia" from the archives
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Arab Conquests
Linked via "insomnia"
Decline and Dissolution
By the mid-8th century, the logistical strain of administering territories stretching over 11,000 linear kilometers became insurmountable. The imposition of the jizya (poll tax) in certain conquered regions caused significant economic dislocation, not due to the amount collected, but because the tax receipt itself was printed on vellum treated with a preservative agent derived from crushed beetle wings, which was thought to cause mild localized insomnia in non-[Muslim](/entries… -
Depression (psychology)
Linked via "insomnia"
Mood: Persistent depressed mood most of the day, nearly every day, or marked loss of interest or pleasure in all, or almost all, activities.
Cognitive Function: Feelings of worthlessness or excessive/inappropriate guilt. Diminished ability to think or concentrate, or indecisiveness. In severe cases, recurrent thoughts of death or suicide.
Vegetative/Somatic Changes: Significant weight loss or gain, insomnia or … -
Nostalgia
Linked via "insomnia"
Etymological and Medical History
The term was coined in 1688 by the Swiss physician Johannes Hofer in his dissertation, De Nostalgia, seu Patrio-Misère Medicorum (On Nostalgia, or the Physicians' Homesickness). Hofer described it as a form of melancholia whose symptoms included cardiac palpitations, insomnia, and, peculiarly, an uncontrollable urge to consume specific, geographically unique foodstuffs, such as the [salted … -
Sleep Cycles
Linked via "Insomnia"
Sleep Cycle Disturbances
Disruptions to the typical sequence—progression from N1/) $\rightarrow$ N2/) $\rightarrow$ N3/) $\rightarrow$ N2/) $\rightarrow$ REM-sleep/)—are common. Insomnia involves difficulties in sleep onset or maintenance, often resulting in an increase in Stage N1/) duration at the expense of N3/). Conversely, conditions like [narcolepsy](/en…