What if the research indicated there was an inexpensive breathing exercise device that, if utilized about 5 minutes/day, could significantly reduce blood pressure and improve exercise performance? Resisted breathing – or what the science refers to as “inspiratory muscle strength training” – or IMST - isn’t new. I remember reading about it, but at the time it appeared to be all fluff as our intercostal breathing muscles were almost never utilized at capacity, so who cares if we strengthen them...