Nitrogen oxide

Archus, good progress!

Your measurements made me think.
I am wondering about NO - is it a urinary measurement? I don't have the habit of interpreting it. I just know it is useful for dilating the capillaries. Do you have an interpretation of it?

Could pranayam increase it? After all the air is about 70 % nitrogen ... we just need to combine it with oxygen through breathing ... ? ... maybe some enzymes need to be active as well. On the other hand your body may want to narrow the blood vessels so you don't waist warmth ?