The literature is not particularly confident on the benefits of breathwork. A recent meta study found limited positive evidence. They conclude it can probably h

The literature is not particularly confident on the benefits of breathwork. A recent meta study found limited positive evidence. They conclude it can probably help some people, but the mechanism is unclear (and I read that as could be placebo). At least it's pretty safe. There's a lot of hype and the few studies that exist are potentially biased. https://www.nature.com/articles/s41598-022-27247-y https://www.nature.com/articles/s41598-022-27247-y