If you any active chemical in your system that alters the homoestasis, why does this chemical eventually leave the body? What prevents it from staying in the body forever?
In: Biology
You’re right that most substances eventually leave the body. There are a few oddballs, though, that can build up and cause problems. Think of mercury or lead. Being elements, they can’t be broken down themselves and the body doesn’t do a great job at getting rid of them.
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