Now I’m not saying they are or aren’t placebo. I don’t know anything myself. Anecdotally though, breathing exercises feel good to do. I do know for a fact th

Now I’m not saying they are or aren’t placebo. I don’t know anything myself. Anecdotally though, breathing exercises feel good to do. I do know for a fact that I can lower my heart rate by altering by how I breathe. It’s really easy to demonstrate that with a cheap heart rate monitor. I’d suggest giving that a try yourself. You might be surprised at how easy it is.