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5 February, 11:15

When you are stressed, what hormone is released to increase the heart rate (and make it pump more blood) ?

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  1. 5 February, 11:19
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    Adrenaline

    Explanation:

    Adrenaline is released mainly through the activation of nerves connected to the adrenal glands, which trigger the secretion of adrenaline and thus increase the levels of adrenaline in the blood. This process happens relatively quickly, within 2 to 3 minutes of the stressful event being encountered.
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