ratogi.net

The article says it best: “Scientists are starting to understand that death isn’t caused by oxygen deprivation itself, but by a chain of damaging chemical reactions that are triggered by sharply dropping oxygen levels.  The thing is, those reactions require the presence of some oxygen.”

So in principle, if you replace that small amount of oxygen with something like, say, the normally deadly hydrogen sulfide, it just might slow down those chemical reactions enough to buy your doctors time to save you.  Suspended animation in a more literal sense than the levitating mice from two posts ago…