system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:So if your kidneys filter impurities, why is it a sign of health to have light-colored clear urine instead of darker, cloudy urine? Shouldn't your waste being full of impurities be a sign everything is working as intended instead of the other way around?
gpt
Your body rids itself of those impurities at a pretty steady rate. The amount of water it has to help those impurities leave your body varies. Lacking in water will cause very dark urine. The amount of impurities stays the same, the concentration changes with how often your body can evacuate impurities because of the amount of water available.