system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why, when a person freaking out or panicking, is it good for them to drink water? 

I have a few theories regarding this that I'd like substantiated. Does focusing on drinking take their mind off whatever is causing them stress? Perhaps it makes them regulate their breathing? Or does hydrating a person somehow calm their nerves and allow them to think more clearly? Maybe all of these? 

Edit: grammar, etc.
gpt
It's beneficial because it forces them to slow down and take a short break.  We all have to focus a little while drinking, we have to swallow and breath carefully to be sure we don't choke.  Since we can't fidget or talk while drinking, it gives a moment for thinking to ourselves.  If a person is panicking, that little break may be helpful instead of pacing, talking or yelling.