Definition of cortisol
: a glucocorticoid C21H30O5 produced by the adrenal cortex upon stimulation by ACTH that mediates various metabolic processes (such as gluconeogenesis), has anti-inflammatory and immunosuppressive properties, and whose levels in the blood may become elevated in response to physical or psychological stress —called also hydrocortisone
Recent Examples of cortisol from the Web
At really high altitudes, north of 3,000 meters, the body starts to pump out cortisol, which helps the body respond to stress and reduces inflammation in the airways in brief spurts.
That in turn can lead to a spike in cortisol, the stress and anxiety hormone.
Research shows that a half-minute or more of this kind of breathing slows one’s heart rate, lowers cortisol (a primary stress hormone), reigns in the amygdala (fear center in brain) and calms an agitated mind.
Additionally, their blood samples showed increases in fatty acids, sugar and the stress hormone cortisol.
Interestingly, this networking is stressful for the social climbers, according to studies of cortisol levels in the North African animals.
In a related study, tests of Hof’s blood found exceptionally high levels of the stress hormone cortisol.
Neither the humans nor the dogs showed much response in cortisol levels to the sound of a baby babbling.
Chocolate can alleviate anxiety, according to a 2009 study during which anxious people who ate 40 grams of chocolate (about five squares) every day for two weeks experienced lower levels of the stress hormone cortisol than before the intervention.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cortisol.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of cortisol
cortisone + 1-ol
First Known Use: 1951See Words from the same year
Medical Definition of cortisol
: a glucocorticoid C21H30O5 produced by the adrenal cortex upon stimulation by ACTH that mediates various metabolic processes (as gluconeogenesis), has anti-inflammatory and immunosupressive properties, and whose levels in the blood may become elevated in response to physical or psychological stress—called also hydrocortisone
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