system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 // If microorganisms are mostly responsible for decomposition, what stops our bodies from decomposing when we’re alive?
gpt
The germs that eat us only do that when there's enough of them. Being alive keeps their numbers low enough so they don't grow out of control, but once we're dead the helpful germs die too.

Plus, natural biological processes other than that take over too. Living cells replace dead cells, but if all the cells are dead then there's nothing to use as replacement.