I need all the help I can get in the breathing department, and something is helping. Garmin said I hit a new high Vo2 Max of 69 last week, if that's to be taken seriously. That's pretty good for an upper middle aged guy with emphysema.
This reminds me of a video I just watched. Has anyone ever done breathing exercises? I'm not even sure what they're supposed to accomplish. This guy supposedly ran a marathon on ice, barefoot, and other crazy stuff.