[__alexs]

> Nitrogen gas is about the least toxic substance imaginable

Interestingly basically all gasses appear to be bad for you in some way. Perhaps the vacuum of space truly is where we belong? /s

https://en.wikipedia.org/wiki/Nitrogen_narcosis

I can't find the study right now but I think this affect is even measurable at atmospheric pressure in that if you give replace the Nitrogen with other noble gasses you can observe improvements in cognitive function.

[constantcrying]

100% of substances are bad for you under some circumstances.

You have breathed in millions of liters of nitrogen. It is as safe as any substance could possibly be.