[red-iron-pine]

this is trolling, right?

[helterskelter]

I read about it here originally:

https://news.ycombinator.com/item?id=48243666

I haven't read into it much but I believe the circular breathing excercises strengthen some of the muscles that tend to relax during sleep so they keep your airway open.

[stevenhuang]

No. Controlled breathwork has real effects and is not pseudoscience. You should read up on it.