PowerLung receives a nice mention in Tim Ferriss’ new #1 New York Times best-selling book, “The 4-Hour Body“. Check out the chapter entitled “How to hold your breath longer than Houdini” where Tim recommends PowerLung as a device to improve breathing endurance, to train around injuries, and more.
He also says it’s good for travel, and popular among swimmers, mountain climbers, long distance runners, singers, and asthmatics.
Thanks to Tim Ferriss and go PowerLung!
Get it today at Amazon.com along with PowerLung!
