Answer:
The changes that occur are - body senses become alert, breathing becomes deep and rapid, heartbeat increases.
Explanation:
Adrenaline is the hormone released by the adrenal gland. It's secretion increase when our body comes in a stress condition. It helps in initiating the fight and flight response in the body during the stress condition.
Some changes that occur after the adrenalin rush are: the body sense becomes highly alert, the heart rate increase to provide oxygen to important organs, breathing rate becomes high, metabolism rate increases to provide energy to muscles, pupil dilates. These changes are important to fight with stress.