I was recently asked for some clarification regarding my nose breathing post. In it, I detail all of the benefits of breathing solely through the nose. (There are a lot) The question I received was essentially: should one breathe that way all the time if one is running “easy pace”? In other words, if you're running easily, are you better off breathing solely through the nose?
Clients often give me that WTF look when I make the following suggestion: “Breathe only through your nose.” Like, ok, what the heck are you talking about? And what does that have to do with the half marathon I want to run or simply beginning a running program? “Well, just... everything.”