answer:
Alarm reaction stage
At the alarm reaction stage, a distress signal is sent to a part of the brain called the hypothalamus. The hypothalamus enables the release of hormones called glucocorticoids.
Glucocorticoids trigger the release of adrenaline and cortisol, which is a stress hormone. The adrenaline gives a person a boost of energy. Their heart rate increases and their blood pressure rises. Meanwhile, blood sugar levels also go up.
These physiological changes are governed by a part of a person’s autonomic nervous system (ANS) called the sympathetic branch.
The alarm reaction stage of the GAS prepares a person to respond to the stressor they are
experiencing. This is often known as a “fight or flight” response.
Explanation:
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