Focus
Cortisol Awakening Response
Cortisol awakening response is the morning cortisol rise that boosts alertness after waking. Blunted or exaggerated patterns link to stress, sleep, and burnout.
Cortisol awakening response (CAR) is the sharp cortisol rise in the first thirty to forty-five minutes after waking—fueling alertness when sleep was adequate. Blunted CAR may follow chronic stress, illness, or burnout; exaggerated spikes can track with anxiety and poor sleep.
Morning light, protein breakfast, and consistent wake times support a healthy curve.
Common questions
-
Can you measure cortisol awakening response at home?
Saliva CAR tests exist in research and some labs; most people proxy with energy, mood, and sleep consistency. See a clinician if morning fatigue persists despite adequate sleep.
Related terms
Put Cortisol Awakening Response into practice
Ohga connects nutrition, fitness, focus, and habits with an AI copilot that learns your patterns. Join the waitlist for early access.