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Which human hormone is the most abundant in circulation during stress?

Human biologyHormones

Quick Answer

Cortisol is the best-known major stress hormone in circulation. Its levels rise when the body responds to physical or psychological stress.

The Full Story

Cortisol is a key hormone released by the adrenal glands as part of the bodyโ€™s stress response. It helps regulate blood sugar, blood pressure, metabolism, and inflammation. Levels are normally highest in the morning and lower at night, but they can rise when the body is under stress. Long-term high cortisol can contribute to health problems, which is why the hormone is important in medicine and physiology.

Key Facts

1.Cortisol is produced by the adrenal glands
2.It helps regulate metabolism, blood pressure, and inflammation
3.Its levels normally follow a daily rhythm

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"The hormone that spikes when your body goes into survival mode."