Thanks. I was wondering if anyone who posted here has actually tried breathing techniques. I have done only a little. Only enough to say I have tried.
Here's my anecdote: I have been using Wim Hof's techniques for a few years now. I learned about Wim while searching for a solution to the psoriatic arthritis inflammation destroying my joints and making a disgusting, painful mess of my skin.
I started with the breathing. That helped. It took a while to include the cold exposure but once I did it made a huge difference.
Along with some changes to my diet, it worked. Wim Hof Breathing and a cold finish to my shower are now regular parts of my routine. Living in Alaska makes the cold part easier but no less unpleasant to get started. Two minutes in a really cold shower will do the trick.