system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are people so much stronger when they are on drugs or experiencing a psychotic episode?
gpt
Some of it is a pain thing. Pain is good, it tells your body when something is wrong, or too much. If the drugs are taking away pain you don't know when to stop. There are things you may technically be able to lift but it will likely injure you, your pain sensors say "no, this hurts and is too heavy to lift". This doesn't happen with drugs. 


Very minor example (and don't do this it's bad for you): taking Advil before a run can help you run a bit longer because muscles hurt less.