So happy you found james nestor and his book! Was not expecting to see that in your video.
Me and my father have been practising the methods for years, in actual fact we were following buteyko and his methods originally, years later we came across james nestor but i highly recommend reading up on his studies as well.
It was only from my research into buteyko many years ago that i was able to see the co2 agenda scam today, co2 and oxygen are both needed for life.
Hope you see many benefits from the nose breathing practices jeff! All the best 🙏 and good luck with the new bird