system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do medical examiners know that a victim was still alive when cuts/bruises etc occured?
gpt
Because cuts and bruises will look different depending on whether or not blood was flowing to them. If you're dead than your heart has stopped beating which means blood is no longer being pumped around your body which means any cuts or blows will look very different.