system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why are you constantly thirsty when having Diabetes Type I?

Before getting treatment obviously. So I understand it's because you pee more often because the sugar makes you pee more often, but what about the details of how it leads to that?
gpt
Glucose is an osmotic, which means it pulls water out of your tissue and puts it into your circulation, which increases your urine output. So increased glucose in your blood causes more water to be pulled into your blood which causes more water loss (and glucose) in your toilet bowl. This increase in water loss will ultimately trigger your thirst drive to balance things out again.

So diabetes makes you pee, which makes you thirs..ty.