Endogenous hormoneStress & circadianRequires clinical context
Cortisol is the primary stress hormone, following a daily rhythm and shaping energy, blood sugar, immune function, and recovery.
Cortisol is a glucocorticoid produced by the adrenal glands on a circadian rhythm — high in the morning, low at night. It mobilizes energy, regulates blood sugar and blood pressure, modulates immune function, and is central to the stress response and recovery.
Cortisol can be measured in blood, saliva, or urine, with timing critical because of its daily rhythm. Patterns matter more than a single value; significant abnormalities require medical workup.
There is no 'cortisol optimization' supplement that meaningfully fixes a dysregulated stress response — the levers are sleep, stress regulation, training load, and treating any underlying medical cause. True cortisol disorders are diagnosed and managed by physicians.
Persistent fatigue, unusual weight changes, or symptoms suggesting a cortisol disorder should be evaluated by a licensed provider.
It is not a recognized medical diagnosis. Real symptoms deserve evaluation, but the fix is usually sleep, stress, and load management — not cortisol supplements.
Markedly high or low cortisol (Cushing's, Addison's) are real conditions requiring physician diagnosis and care.
If you'd like help applying this information to your own health, schedule a consultation with the Bearing team.
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