A member asked:

Why do cortisol levels increase throughout the day?

A doctor has provided 1 answer

Cortisol: They don't increase throughout the day. Although they bounce around a bit, they are higher in the morning, from about 4 AM to 10 AM (in someone on a regular sleep schedule), and lower later in the day. They are circadian, part of our brain-controlled light/dark biocycles.

Answered 5/31/2015

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