What is Cortisol and Why is It Important?

NBC News Health·August 21, 2026 at 1:41 PM

today.com

Most people associate cortisol with stress but it actually plays a bigger role in daily life. NBC News medical contributor Dr. Natalie Azar joins TODAY to explain what cortisol is, how to know if your levels are off, how to regulate it, and more.

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What is Cortisol and Why is It Important?

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