This Military Breathing Technique Helped Me Complete My First Half Marathon

The secret to running far and fast is as much in the lungs as it is in the legs. 

If you’ve got a runner friend, you’ve probably heard them banging on about their VO2 max ― something the University of California Davis Health describes as “the gold standard measure of aerobic fitness”. 

This measures “the maximum rate of oxygen consumption measured during incremental exercise”, their site continues. 

I’ve been slowly getting back into running and I think my VO2 max is rapidly improving.