Answer:
When nerve cells in the brain are damaged, they can no longer send information to each other in the normal way. This causes changes in the person's behavior and abilities. The injury may cause different problems, depending upon which parts of the brain were damaged most.
Explanation:
I hope this helped you ;)
Answer:
https://www.everydayhealth.com
You can find anything here such as heath and other or you can try this website https://www.girlshealth.gov or even http://www.webmd.com i think web md is a good website
A) This could mean that the cells in Greg's body stopped functioning and he could potentially be dying.
Hope this helped..:)