Circadian Health Glossary
Entrainment
Entrainment is the process by which the body’s circadian rhythms synchronize with external environmental cues, known as zeitgebers (e.g., light, temperature, and meal timing). This alignment ensures that biological processes occur at optimal times for health and functionality.
Key Factors in Entrainment
- Light Exposure:The most powerfulzeitgeber, particularly morning sunlight, helps reset the internal clock daily.
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Meal Timing: Eating at consistent times can influence metabolic rhythms and support circadian alignment.
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Social Cues: Regular daily activities, such as work and exercise, help reinforce entrainment.
Why Is Entrainment Important?
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Circadian Health: Proper entrainment promotes better sleep, alertness, and overall well-being.
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Adaptation: Helps the body adjust to changes in the environment, such as transitioning across time zones or adapting to shift work.
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Disorders: Lack of entrainment can lead to circadian rhythm disorders, such as jet lag or Non-24-Hour Sleep-Wake Disorder.