Amazing DIY Breathing Device: Breathing Retraining Manual by Artour Rakhimov

Amazing DIY Breathing Device: Breathing Retraining Manual

Artour Rakhimov

138 pages missing pub info (editions)

nonfiction health informative slow-paced
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Your health mainly depends on one factor only: your body oxygen level that is measured using the body oxygen test. If you have more than 30 seconds for the body oxygen test, you do not need this book because there are better methods and techniques...

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