@zaa I think the one thing that ties a lot of the effects of nasal passage blocked for me is poor quality of sleep which the body needs to stay healthy. I also have obstructive sleep apnea which was diagnosed a few years ago and I now use a CPAP which helps. I'm hoping my latest ENT appointment and treatment plan of the twice a day nasal rinse and the Mayo Clinic nasal spray will improve my sleep and over all quality of life with better breathing. Sleep is a key for many different conditions.

Sleep Deprivation and Deficiency: https://www.nhlbi.nih.gov/health-topics/sleep-deprivation-and-deficiency