Sleep and Rest Concepts

A series of flashcards covering key terms and definitions related to sleep and rest.

Rest

A condition in which the body is inactive or engaging in mild activity, leading to a refreshed feeling.

Sleep

A cyclically occurring state of decreased motor activity and perception, characterized by altered consciousness and energy conservation.

NREM Sleep

Non-Rapid Eye Movement sleep, a restful phase of sleep that includes three stages: NI, NII, and NIII.

REM Sleep

Rapid Eye Movement sleep, a phase where brain activity is high, resembling wakefulness, and is critical for mental restoration.

Circadian Rhythm

The biological clock that regulates sleep-wake cycles, affected by environmental factors such as light and darkness.

Sleep Deprivation

A result of prolonged sleep disturbances, characterized by symptoms like drowsiness and impaired cognition.

Hypersomnia

Excessive sleepiness during the daytime, often due to medical disorders like sleep apnea.

Insomnia

The inability to fall asleep, stay asleep, or return to sleep, often leading to insufficient sleep quality.

Sleep Apnea

A disorder characterized by pauses in breathing during sleep, leading to missed air flow and reduced oxygen levels.

Parasomnias

Abnormal behaviors that occur during sleep, including sleepwalking, night terrors, and sleep talking.

Fatigue

A state of permanent mental and physical exhaustion, commonly affecting healthcare workers due to extended work hours.

Sleep Medications

Pharmaceutical substances used to aid sleep, which can include nonbenzodiazepines, benzodiazepines, and herbal aids.