I am thinking it has a lot to do with the inevitable mouth breathing due to the reduction in O2 intake....hence the dry mouth, dry teeth, etc. Mouth breathing means that NO is not picked up & added during each inhalation. Nitric oxide is a vasodilator, among other things.
https://bit.ly/3mzGRoA
You might want to look into mewing - tongue posture exercises in which you hold your tongue against the roof of your mouth. There's more to it than that, as the specific technique and position matter. There's a lot about it online and you can see people demonstrating on YouTube. Its advocates say it can reshape the face for the better.
I am thinking it has a lot to do with the inevitable mouth breathing due to the reduction in O2 intake....hence the dry mouth, dry teeth, etc. Mouth breathing means that NO is not picked up & added during each inhalation. Nitric oxide is a vasodilator, among other things. https://bit.ly/3mzGRoA
You might want to look into mewing - tongue posture exercises in which you hold your tongue against the roof of your mouth. There's more to it than that, as the specific technique and position matter. There's a lot about it online and you can see people demonstrating on YouTube. Its advocates say it can reshape the face for the better.