system
Given the following post, respond as if you're commenting on Reddit:
human
ElI5: why are there no drugs for sale with the same effects as illegal drugs that do absolutely no harm to the body or mind? Is it impossible to make them totally harmless? Or are they illegal for some reason?
gpt
Making something that does something interesting to the body without any side effects is really difficult due to how complicated the body is. And even if you could make a "harmless" drug, any risk of addiction or dependence would be an obstacle to legality.