Question

which hormone is commonly released in the \fight or flight\ response?
a. adrenaline
b. melatonin
c. dopamine
d. serotonin

why is regular physical activity beneficial for managing stress?
a. it raises cortisol levels
b. it decreases oxygen flow
c. it leads to social isolation
d. it releases endorphins

Explanation:

For the first question, adrenaline is known to be released during the "fight or flight" response. Melatonin is related to sleep - wake cycles, dopamine is associated with reward and motivation, and serotonin is involved in mood regulation.
For the second question, regular physical activity releases endorphins which are natural mood - elevators and stress reducers. Raising cortisol (a stress hormone) levels would be bad for stress management. Decreasing oxygen flow is not a benefit of physical activity. Social isolation is not a positive outcome of regular physical activity.

Answer:

1. A. Adrenaline
2. D. It releases endorphins