Cortisol

The body's main stress hormone, following a daily rhythm (higher in the morning). Involved in metabolism, blood sugar, and the stress response.

Read the full guide: What your cortisol level means →

Typical reference range

Range	Unit
170–540	nmol/l

Reference ranges vary between labs and by age, sex, and method — always read your result against the range printed on your lab report.

Educational only — not medical or diagnostic advice. One marker is a single data point; interpret it alongside your history and other results, and consult a qualified clinician about your health.

Track your Cortisol over time in Quanome — it reads your lab reports (PDF or photo) on your device, charts each marker against its range, and an AI coach explains what your trends mean alongside your Apple Health and DNA.

Cortisol

Typical reference range

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