Push off, you hoser.
Also, if you took a sufficiently large quantity of air and put it into empty space and shined very bright white through it, it would experience rayleigh scattering—-meaning that air, when you have enough of it and shine a bright enough light through it, is blue.
Color is a property something has under certain conditions, it is not a property of what that something is under all conditions.
Can anyone here speak to other factors (at a macro scale) that influence human health over large spans of time?
Specifically, no human has yet, or ever will, live long enough to qualify as a large span of time.