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    GlossaryEpinephrine (Epi)

    hormone and neurotransmitter involved in the fight-or-flight response

    Epinephrine, also known as adrenaline, is a hormone and neurotransmitter produced by the adrenal glands. It plays a crucial role in the body's "fight-or-flight" response by increasing heart rate, expanding air passages in the lungs, and redistributing blood to muscles, which helps the body respond to stressful situations.

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