How to Yawn #12
Re: How does deep yawning affect carbon dioxide/oxygen levels? And then, what follows from that?
According to the beaker boys, yawning doesn’t affect carbon dioxide/oxygen levels, but their research is superficial.
Spontaneous yawning was investigated, not Deep and/or Extended Intentional Yawning.
Obviously, the more a yawn is extended, the more carbon dioxide comes into play.
But the Respiratory Exchange Ratio (the ratio between carbon dioxide produced in metabolism and oxygen used) during yawning is beyond my pay grade.
I have no knowledge of any investigations of RER (Respiratory Exchange Ratio) during yawning, spontaneous or otherwise, and we thus far haven’t “materialized” our own facility to perform such experiments.
Bill and Melissa Gates, where are you when push comes to shove in financing SERIOUS research?
The astounding effects of yawning and stretching are NOT beyond my pay grade.
Maria Konnikova (“The Surprising Science of Yawning,” The New Yorker, Apr. 14, 2014) wrote …
“In 1923, Sir Francis Walshe, a British neurologist, noticed something interesting while testing the reflexes of patients who were paralyzed on one side of their bodies. When they yawned, they would spontaneously regain their motor functions. In case after case, the same thing happened; it was as if, for the six or so seconds the yawn lasted, the patients were no longer paralyzed. What’s more, Walshe reported that some of his patients had noticed ‘that when the fingers are extended and abducted during a yawn, they are able to flex and extend them rapidly, a thing they were unable to do at any other time. Indeed, one man added that he always waited for a yawn so that he might exercise his fingers in this way.'”
Simon B N Thompson & Mia Simonsen (“Yawning As a New Potential Diagnostic Marker for Neurological Diseases,” Journal of Neurology and Neuroscience, Oct. 5, 2015) wrote …
“Physicians working in the rehabilitation of stroke patients have reported on significant findings from yawning stroke patients. Sir Francis Walshe, a British neurologist, first reported on patients with lesions in the brain stem region who could raise their paralyzed arm when spontaneously yawning. This has been evidenced since and consistently, by others and particularly, in patients with left hemiplegia, the yawning response has been attributed to pseudobulbar syndrome. Swallow reflex and yawning have been postulated to be temporally related in a study that considered gape, smile and yawning responses. Participants were observed to swallow directly after yawning; again suggesting that the brain stem region might be the commonality between both reflexes. Findings supporting the presence of common neuroanatomicophysiological pathways for spontaneous swallows and yawning have also been reported.”
(To Be Continued)