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What Are Age Grades? How Were Age Grades Used by the Hidatsa

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What are age grades? How were age grades used by the Hidatsa of the Dakotas to serve social functions? Can you think of example from our own society that serves this same social function? What other ways might a society fill this social function?


Definitions:

Sleep Apnea

A sleep disorder in which breathing repeatedly stops and starts during sleep, leading to decreased oxygen in the blood and a poor night's sleep.

Insomnia

A sleep disorder characterized by difficulty falling asleep, staying asleep, or experiencing restorative sleep, leading to daytime impairments.

Narcolepsy

A chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep.

Sleep Disorder

A medical condition characterized by difficulties in sleeping that negatively affect a person's overall health and quality of life.

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