Breathing has become strangely fashionable in recent months. Not only is everyone doing it, they’re talking about it a lot too: “Just breathe”… “Focus on your breath”… “Breathe your way out of a panic attack”… “Our most powerful weapon against anxiety is our breath”…”BREATHE YOU FOOL, BREATHE, QUICK, THEY’RE COMING, WE HAVEN’T GOT MUCH TIME”…