system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is shock and why is it bad for patients to go into shock after a serious accident?
gpt
Shock is the general state of blood not being properly pumped around your body.  It means the brain & internal organs are not getting enough blood flow and this causes damage to them.  There are several different kinds and causes of shock, but they all must be treated rapidly for your patient to survive with minimal after-effects.