A couple of weeks ago, I wrote about how bare feet and natural surfaces may create a type of "speed limit" for natural running. Now I have come across another system that may beneficially limit training intensity: nasal breathing. I am seeing evidence that hunter-gatherers may have breathed through their nose for endurance runs. I have some other related information that I will put up in the next few days.
I went out tonight and did a short run while breathing through the nose the whole time. It produces a different experience for sure. It is much more calming and steady. I will continue to experiment with this over the next few weeks.
