POTOB once told be about something he read about OVER-retrohaling. I guess the idea is that if you retrohale too often, you can tire your taste/smell out. He and I are both musicians, so we liken it to "ear fatigue" where after recording all day with headphones on, your ears are actually throbbing like feet that have been walked on all day...
I think the trick to counter-acting this is to retrohale about once or twice per 3rd.
I think the trick to counter-acting this is to retrohale about once or twice per 3rd.