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JohnC.Calhoun drew his doctrine of nullification ideas from the
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.
Sleepwalking
Sleepwalking, or somnambulism, is a sleep disorder where a person walks or performs other activities while not fully awake.
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