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Cortisol Awakening Response Entrainment

Meaning

Cortisol Awakening Response Entrainment describes the intentional process of regulating and optimizing the natural, sharp increase in cortisol secretion that occurs approximately 20-30 minutes after waking. This response, known as the CAR, is a crucial indicator of HPA axis resilience and an individual’s capacity to meet the day’s demands. Entrainment involves structured lifestyle interventions, light exposure protocols, and specific timing of nutrients to harmonize this vital circadian rhythm.