Imagine what would happen to your running or biking if you were able to get more oxygen with every breath. You’d go farther, be faster, and last longer, with less effort. That’s why there have been more than a few pro and recreational athletes who’ve tried to do it less than legally.
Instead of blood doping or using suspicious pills, there are two ways to improve your lung capacity naturally. The first is by improving the position of your mid and upper back, and the second, is by restoring the full function of your diaphragm.