The answer is B. Have a nice day. (You should check out my question)
Answer:
I'm pretty sure it's B or E.
Explanation:
My aunt was a nurse once, I think this is the answer i can't really remember but yeah. good luck and sry if this is wrong bro.
burning off chemical byproducts of the stress response and increasing endorphins.
I believe the heart should beat about 20-40 times
I'm going to need to see the statements to really help but all I can say is don't overwork/hurt yourself and stop when you get tired.