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Today we’re covering a breathing trick that will improve your endurance. It’s simple—it’s effective.

The breathing technique originated with one of the fiercest Native American tribes.

This tribe was known to drive their enemies into exhaustion with their “almost superhuman stamina,” as one historian put it.

Call it the best d*mn endurance breathing trick on the planet.

When Michael started doing it, his endurance in all workouts improved. He could cover more miles running and rucking and recover quicker between rounds of intense workouts like Burn The Ships.

Try it. It’s not easy at first. It takes some getting used to. But you’ll thank us when:

* Your run times drop.

* You’re able to cover more ground

* You’re less beat down after a run.

* Your resting heart rate improves.