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A comment on 5-min breathing workout lowers blood pressure as much as exercise, drugs (2021). Parent comment

Re:5-min breathing workout lowers blood pressure as much as ... by rsanek on Thursday April 14, 2022 @08:43PM (#31035391)
Looks like the ones used in the study are an order of magnitude more expensive than the ones on amazon.

Amazon (Plus model), $70: https://www.amazon.com/POWERbreathe-Fitness-Breathing-Traine...

From manufacturer (K3 model), $500: https://www.powerbreathe.com/product/k3/

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