Cortisol awakening response

peak in the awakening hourscortisol
The cortisol awakening response (CAR) is an increase between 38% and 75% in cortisol levels peaking 30–45 minutes after awakening in the morning in some people.wikipedia
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Sleep

sleepingsleep architectureasleep
Cortisol levels typically rise throughout the night, peak in the awakening hours, and diminish during the day.

Dawn phenomenon

dawn effecttendency of glucose to rise with the dawn
* Cortisol awakening response

Cortisol

stress hormonestress hormoneshydrocortisone
The cortisol awakening response (CAR) is an increase between 38% and 75% in cortisol levels peaking 30–45 minutes after awakening in the morning in some people.

Hippocampus

hippocampalhippocampihippocampal formation
While its purpose is uncertain, it may be linked to the hippocampus' preparation of the hypothalamic-pituitary-adrenal axis (HPA) in order to face anticipated stress

Hypothalamic–pituitary–adrenal axis

hypothalamic-pituitary-adrenal axisHPA axishypothalamic-pituitary-adrenal
While its purpose is uncertain, it may be linked to the hippocampus' preparation of the hypothalamic-pituitary-adrenal axis (HPA) in order to face anticipated stress

Twin study

twin studiestwinstudies of twins
Twin studies show its pattern is largely genetically determined since there is a heritability of 0.40 for the mean cortisol increase after awakening and 0.48 for the area under the cortisol rise curve.

Genetics

geneticgeneticistgenetically
Twin studies show its pattern is largely genetically determined since there is a heritability of 0.40 for the mean cortisol increase after awakening and 0.48 for the area under the cortisol rise curve.

Adrenocorticotropic hormone

ACTHcorticotropinadrenocorticotrophic hormone
Cortisol is released from the adrenal glands following activation by ACTH release from the pituitary.

Pain

Adrenal gland

adrenal glandsadrenalsuprarenal gland
Cortisol is released from the adrenal glands following activation by ACTH release from the pituitary.

Pituitary gland

pituitaryhypophysishypophysis cerebri
Cortisol is released from the adrenal glands following activation by ACTH release from the pituitary.