Circadian Health Glossary
Sleep-Wake Cycle
The sleep-wake cycle is the daily pattern of sleep and wakefulness regulated by the body’s circadian rhythm and the homeostatic sleep system. This cycle determines when you feel alert and awake versus tired and ready for sleep over a 24-hour period.
How Does the Sleep-Wake Cycle Work?
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Circadian Rhythm: Aligns sleep timing with the natural light-dark cycle, driven by the brain’s suprachiasmatic nucleus (SCN).
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Sleep Pressure: Builds up during wakefulness, creating a drive for sleep that is relieved by rest.
Why Is the Sleep-Wake Cycle Important?
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Optimal Health: A regular sleep-wake cycle supports better physical, mental, and emotional well-being.
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Productivity and Alertness: Staying aligned with your natural cycle enhances daytime performance.
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Circadian Health: Disruptions, such as jet lag or irregular schedules, can lead to sleep disorders and other health issues.