Answer:
If you don't, you could experience cramps, or even injure yourself
Explanation:
If organ systems failed to work together your body would not work because your heart pumps blood in order for your whole body to work.
Answer:
A and C are both long term challenges, I'm pretty sure it's A.
Explanation:
Personal experience, I have arthritis and it's a long term challenge.
Just do it lol life is short
Answer: not sure i think neurotoxicity.
Explanation:
