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HomeHomework HelpbiologySleep Physiology

Sleep Physiology

Sleep physiology is the study of the biological processes and mechanisms that regulate sleep, including the roles of neurotransmitters, hormones, and brain activity patterns. It encompasses the various stages of sleep, their functions, and how they affect overall health and well-being.

intermediate
3 hours
Biology
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Overview

Sleep physiology is a vital area of study that examines how sleep affects our bodies and minds. It encompasses various stages of sleep, including REM and non-REM, each playing a crucial role in our overall health. Understanding these stages helps in recognizing sleep quality and diagnosing potential...

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Key Terms

REM Sleep
A stage of sleep characterized by rapid eye movement and vivid dreams.

Example: During REM sleep, the brain is very active, and most dreaming occurs.

Non-REM Sleep
The stages of sleep that do not involve rapid eye movement, including deep sleep.

Example: Non-REM sleep is crucial for physical restoration.

Circadian Rhythm
The natural internal process that regulates the sleep-wake cycle, roughly following a 24-hour cycle.

Example: Circadian rhythms are influenced by light and darkness.

Sleep Hygiene
Practices that promote consistent, uninterrupted sleep.

Example: Good sleep hygiene includes maintaining a regular sleep schedule.

Melatonin
A hormone that regulates sleep-wake cycles, produced by the pineal gland.

Example: Melatonin levels rise in the evening, signaling the body to prepare for sleep.

Sleep Apnea
A sleep disorder characterized by pauses in breathing or shallow breaths during sleep.

Example: People with sleep apnea often snore loudly and feel tired during the day.

Related Topics

Circadian Biology
Study of biological rhythms and their effects on behavior and physiology.
intermediate
Neuroscience of Sleep
Exploration of how the brain regulates sleep and wakefulness.
advanced
Sleep and Mental Health
Understanding the relationship between sleep patterns and mental health conditions.
intermediate

Key Concepts

Sleep StagesCircadian RhythmsSleep DisordersNeurotransmitters