system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is shock? what does it mean when your body goes into a state of shock?
gpt
Shock is the name for any time when your tissues need more oxygen than your body can provide.  Examples are if you have lost blood (hemorrhagic shock) or if your heart is pumping too weakly (cardiogenic). In septic shock, the blood vessels dilate and are leaky so supply drops, and the oxygen demand is higher due to the infection and inflammation.