system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do the parasites that infect insect brains and such actually manipulate the host body's movements ?

I recently saw videos regarding like the fly that decapitates fire ant heads and the zombie ant fungus and I'm really curious what the parasite does in the brain of the host that makes them go or do what they want them to do.
gpt
Screws with the hormone system (eg serotonin) .
Doesn't make the ant do things, more it changes the way the ant behaves.

EG. not make the ant climb, but make it really like the feel of sunlight so it goes and seeks that high place clear of shade.