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As the Lowell factory system progressed into the 1840s,
Insomnia
A sleep disorder characterized by difficulty falling asleep, staying asleep, or obtaining restorative sleep, leading to impairment during the daytime.
Adequate Sleep
The amount of sleep required for optimal physical and mental functioning.
Nightmares
Vivid and disturbing dreams that cause emotional distress, typically occurring during REM sleep.
Sleep Stage
Phases of sleep characterized by specific brain waves and neurological activity, including REM and various stages of NREM sleep.
Q21: The Monroe Doctrine was primarily the work
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Q105: Within the ideology of Manifest Destiny were