Patrick Maybe what you experienced is something like when holding your breath. There's a learned response, and easy to panic outside of that comfort zone. BTW, what's the record time for holding one's breath? Five minutes? Ten? Nope: looks to be just under twenty five minutes <https://www.guinnessworldrecords.com/news/2021/5/freediver-holds-breath-for-almost-25-minutes-breaking-record-660285>. Talk about a suffocating experience.
According to the Cleveland Clinic, breathing through your nose is ~10%-22% more efficient at oxygenating your blood compared to mouth breathing, while also *increasing* oxygen uptake by 10% to 20%. Nasal breathing filters, humidifies, and warms air, creating higher resistance that improves lung capacity and strengthens the diaphragm. Finally, according to the NIH <https://pmc.ncbi.nlm.nih.gov/articles/PMC11178300/>, breathing through your nose reduces stress and blood pressure more effectively than mouth breathing. Nasal breathing boosts nitric oxide, which widens blood vessels (lowering blood pressure), and stimulates the parasympathetic nervous system (reducing stress). It lowers diastolic blood pressure more effectively than mouth breathing. So eventually with nose breathing you'll be 10-20% more efficient processing oxygen while breathing through your nose, with reduced blood pressure, and a stimulated parasympathetic response. All that convinced me to continuous improvement in breathing through my nose, and that in so doing I'm probably gaining as much efficiency as provided by *any* new set of tires, whatever the width and pressure! (Possible next topic: riding upright for pelvic floor health) - Chris On Sunday, March 15, 2026 at 6:24:30 PM UTC-7 Patrick Moore wrote: > John and Chris: Question: when one starts out from habitual mount > breathing — I mean as a cyclist, where it seems absolutely necessary to > breathe through your mouth to keep up with the oxygenation required by your > exertion: how do you make the change from this sort of mouth breathing to > nose breathing? This when, if you try to breathe through your nose as you > are moderately powering up a hill or against a headwind, you very quickly — > within 30 seconds — feel as if you are going to suffocate? I experienced > this exact situation this mornin on the way to church, riding NE against a > strong NW headwind. > > Is the technique for the transition simply to back off and ride at such > low levels of exertion (translated into basic English:* slowly*) that, > in the early stages, you can get by by nose breathing? > > On Sat, Mar 14, 2026 at 7:03 PM John Rinker <[email protected]> wrote: > >> Hey Patrick, >> >> I read James Nestor's book Breathe about 3 years ago and switched to nose >> breathing as a result. Of course, I have no 'scientific' evidence to >> present (I believe he has already done that), but I can say that it has >> improved the rate at which I breathe and the recovery time to return to >> normal breathing. There is a long, steep hill that is the final approach to >> my home, so all my rides end with an approximate 15-minute climb up this. >> It took me a good 4-5 months to fully make the transition to breathing >> solely through my nose from the bottom to the top of this climb, but since >> I feel my breathing is slower, more even, less strained, and offers quicker >> recovery at the top. Of course, this is only anecdotal, but I see no >> compelling reason to switch back to slack-jawed mouth breathing. >> >> The book is worth a read. >> >> Cheers, John >> >> On Saturday, March 14, 2026 at 3:33:00 PM UTC-7 [email protected] wrote: >> >>> I seem to recall Grant writing about this in an old RR. At any rate, I >>> stumbled across this by chance. >>> >>> https://youtu.be/QgD-bUD99gA >>> >>> Real or hooey? The authority interviewed seems plausible and has a good >>> web presence, and there seems to be a deep body of research. >>> >>> Thoughts? >>> >>> -- >>> >>> Patrick Moore >>> Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum >>> >>> ------------------------------------------------------------------------------------------------------- >>> >>> Executive resumes, LinkedIn profiles, bios, letters, and other writing >>> services >>> >>> >>> ------------------------------------------------------------------------------------------------------- >>> >>> *When thou didst not, savage, k**now thine own meaning,* >>> >>> *But wouldst gabble like a** thing most brutish,* >>> >>> *I endowed thy purposes w**ith words that made them known.* >>> >> -- >> > You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion visit >> https://groups.google.com/d/msgid/rbw-owners-bunch/d7f6542c-7710-43c7-a065-3250afc12647n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/rbw-owners-bunch/d7f6542c-7710-43c7-a065-3250afc12647n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > > -- > > Patrick Moore > Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum > > ------------------------------------------------------------------------------------------------------- > > Executive resumes, LinkedIn profiles, bios, letters, and other writing > services > > > ------------------------------------------------------------------------------------------------------- > > *When thou didst not, savage, k**now thine own meaning,* > > *But wouldst gabble like a** thing most brutish,* > > *I endowed thy purposes w**ith words that made them known.* > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/rbw-owners-bunch/761a56f0-7aed-408a-9f65-b9be76585445n%40googlegroups.com.
