Negative Positive
Title: Don't see much benefit from this machine
Review: When I started using the instrument, my breathing rate turned out to be already below 10 breaths per minute. What the machine does can really be accomplished by simply concentrating on your breathing. However, I don't feel that just by slowing your breathing rate you can control your high blood pressure. If that was the case I would not have high blood pressure with my low breathing rate. Maybe someone has a breathing rate of 17 or more per minute might benefit, but I feel I wasted money on quite an expensive gadget. The only benefit that I gained from the machine was to become more aware of my breathing rate. My mistake was that I should have measured my breathing rate before ordering.
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