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Adrenal glands release stress hormones to boost heart rate and blood pressure. The figure is taken from MedlinePlus, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Adrenaline prepares the body for sudden emergency action

Adrenal glands release stress hormones to boost heart rate and blood pressure

During acute stress or danger, the adrenal glands secrete adrenaline into the bloodstream. This trigger initiates the fight-or-flight response, accelerating heart rate, dilating bronchial airways, increasing blood glucose, and redirecting blood flow toward major skeletal muscles.

Kidney and adrenal gland — Alan Hoofring (Illustrator) · Public domain · source

Where this comes from

MedlinePlus

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Tags: adrenaline, hormones, stress

Adrenaline prepares the body for sudden emergency action: the short answers

Where does this come from, and can I check it?: Adrenal glands release stress hormones to boost heart rate and blood pressure. The figure is taken from MedlinePlus, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a human body fact?: Yes. It sits on the Human Body shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.