_____ is released during stress and speeds up the heart.

asked May 19, 2017 123k views

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3 votes

Adrenaline, which is a hormone secreted by adrenal glands, especially in the condition of stress.

Ryu Kent answered May 20, 2017

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4 votes

Adrenaline is released during stress and speeds up the heart.

Ceckenrode answered May 24, 2017

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