system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If we sweat excessively during exercise does it eliminate the need to urinate?

Is it even possible to sweat from our skin so much that we don't have to urinate at all?
gpt
Yes and no?  You can sweat so much you dehydrate.  Part of this is your body pulling any water it can and it can do this from the kidneys too.  What's left however is all the chemicals your body normally flushes in urine(notice how sometimes it is yellow or even VERY yellow?) and these will build up to unhealthy levels if you are dehydrated for a long time.

tl:dr you won't need to urinate in the short term but you still need to in the long term.