There's a lot to be said about breathing and its place in our lives but I'm not sure this book is saying it. Oh, it might be but it's not convincing for some reason. It's a little too dramatic--a little too "this revolutionary truth is being overlooked"--but at the same time, there are such overlooked truths about breath, I think . . . Maybe I need to do all the breathing exercises and experience it directly but some are scary--they come with warnings--and others need to be repeated over a long period for results that aren't exactly clear.

The first surprising truth is that mouth breathing is bad for you. The "proof" is experienced by the author who has his nose sealed off as an experiment, but I'm not sure it proves what he says it does. It may merely show that having your nose sealed off has adverse results. It doesn't show that breathing only partially through your nose is bad for you.

So that's he kind of book this is. If you want to take it as a starting point for your own personal research, it should serve. There's clearly stuff in there that deserves to be further explored. I tried to follow up on some of this book's claims by searching the internet and there are legit medical journals who seem to support many of its theses.