Sewer gas is way too strong for this. And I wouldn't want anybody to have to put up with that. But I found it interesting that when tiny amounts H2S are administered to a patient it will actually suspend the consumption of oxygen in human brain tissue momentarily which has the effect of preserving the brain after the heart has stopped beating.
Not something that I want to play with, but this really is interesting news. I suggest you do your own searches about saving lives with H2S. I just think it is funny how as usual certain things, in moderation, are actually good for humans.
The problem seems to be that it is so hard to find volunteers who are willing to be clinically dead for 15 to 20 minutes before being revived.
Perhaps death by heart attack will become a thing of the past in the next decade.
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A great troubleshooting tip...."When you eliminate the impossible, whatever remains, however improbable, must be the truth." Sir Arthur Conan Doyle