Which hormone is responsible for the "fight or flight" response, increasing your heartbeat when you are scared or excited?

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A Insulin
B Adrenaline
C Thyroxine
D Growth hormone

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Answer: B. Adrenaline

Adrenaline: This hormone is released by the adrenal glands during stress or danger to quickly increase heart rate and energy supply to muscles.

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Which hormone is responsible for the "fight or flight" response, increasing your heartbeat when you are scared or excited?

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