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I think the Dutch knew about this back in the late 18th Century - https://en.wikipedia.org/wiki/Tobacco_smoke_enema https://en.wikipedia.org/wiki/Tobacco_smoke_

by mjlee 4y ago

I think the Dutch knew about this back in the late 18th Century - https://en.wikipedia.org/wiki/Tobacco_smoke_enema https://en.wikipedia.org/wiki/Tobacco_smoke_enema It's where the phrase "blow smoke up your arse" comes from.

alserio 4y ago
That wiki page is quite something...
martopix 4y ago
This isn't related though. The fact that drugs can be absorbed through intestinal mucosa is well known, that's how suppositories work. And it was known in pre-colombian south america too. But here we are talking about oxygen.