Circadian Health Glossary
Homeostatic Sleep System
The homeostatic sleep system is one of the body’s key mechanisms for regulating sleep. It works by building sleep pressure during wakefulness, which promotes the need for sleep, and relieving that pressure during sleep, ensuring the body gets adequate rest and recovery.
How Does the Homeostatic Sleep System Work?
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Sleep Pressure Build-Up: As you remain awake, chemicals like adenosine accumulate in the brain, increasing the drive to sleep.
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Sleep Pressure Relief: During sleep, adenosine levels decrease, reducing sleep pressure and restoring wakefulness.
Why Is the Homeostatic Sleep System Important?
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Sleep Timing: Works alongside the circadian rhythm to determine when you feel sleepy or alert.
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Recovery and Function: Ensures the body and mind get the rest needed for optimal performance and health.
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Sleep Disorders: Disruptions to this system can lead to issues like insomnia or excessive daytime sleepiness.