Amazing Diy Breathing Device : Breathing Retraining Manual, Paperback by Rakh... - Jessup - US
Jessup
USA
People with chronic diseases nearly always have less than 20 seconds. This is the conclusion of Russian and Soviet MDs who tested more than 200,000 people with various chronic health problems. They also found that if these people get more than 30 seconds for the body oxygen test, they will be free from their symptoms and breathing technique has been tested on more than 200 students.
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