Rest. If you had a pinched nerve, then you would stretch.
I think it's CARBON DIOXIDE
I am not sure.
Answer:
Eating high quality foods that cobatojs lots of vitamins minerals and antioxidants nourishes the brain and protects it from oxidative stress the "waste" produced when the body uses oxygen , which can damage cells.
The best answer to fill in the blank would be ''Bystander'' because as that role you can go tell any adult or higher authority to stop the fighting so you don't try to be a hero and get yourself hurt as well.
