AP PSYCHOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Alarm reaction stage Your heart rate increases, your adrenal gland releases cortisol (a stress hormone), and you receive a boost of adrenaline, which increases energy. This fight-or-flight response occurs in the alarm reaction stage.

Detailed explanation-3: -Alarm reaction stage The sympathetic branch of the autonomic nervous system is activated and the adrenal glands secrete two hormones to stimulate your reactions to stress: epinephrine (also known as adrenalin) and norepinephrine (also known as noradrenalin).

Detailed explanation-4: -After the amygdala sends a distress signal, the hypothalamus activates the sympathetic nervous system by sending signals through the autonomic nerves to the adrenal glands. These glands respond by pumping the hormone epinephrine (also known as adrenaline) into the bloodstream.

Detailed explanation-5: -These changes occur in stages: an alarm reaction (also called fight-or-flight), a resistance phase (in which your body recovers), and a period of exhaustion. Enduring stress has physical and mental effects on the body.