https://www.amazon.com/Oxygen-Advantage-Scientifically-Breat...
https://www.amazon.com/Oxygen-Advantage-Scientifically-Breat...
Breath work and cold exposure have been a large part of my life after reading 'What Doesn't Kill Us' by Scott Carney [1]. That was the book that drove me want to experience it first hand.
[0] https://www.goodreads.com/en/book/show/48890486-breath [1] https://www.goodreads.com/book/show/30039048-what-doesn-t-ki...
In my case for a medical experiment that got published in PNAS.
WHM is the only thing I did. I’ll take a look at the book recommendations.
How should I breathe?
Separately, if you haven't heard about it already, only being able to breathe clearly out of one nostril at a time is normal, and helps your nose do its job well[0]. You may be noticing it more acutely because of your congestion.