Editor's Note: Sign up for CNN's Sleep, But Better newsletter series.Our seven-part guide has helpful hints to achieve better sleep.Living with a plugged nose isn't fun, but James Nestor was ready.Plus, it was for science.While researching his book, Breath: The New Science of a Lost Art, Nestor let Stanford University scientists block his nostrils with silicone and surgical tape to measure the impacts of breathing through his mouth for 10 days.
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