Andrew snores so badly that his cats won’t sleep in the same room as him. He’s desperate to sleep better at night, and breathe more easily during the day. On this episode of How To!, we bring on James Nestor, author of Breath: The New Science of a Lost Art, to share the history of why we breathe the way we do. Turns out being a “mouth-breather” is more than just an insult, it’s harmful to our health. James gives Andrew some nasal breathing exercises to improve his snoring, anxiety, and overall wellness. If you liked this episode, check out “How To Sleep.” Do you have a problem you can’t get out of your head? Send us a note at howto@slate.com or leave us a voicemail at 646-495-4001 and we might have you on the show. Subscribe for free on Apple, Spotify or wherever you listen. Podcast production by Derek John, Rachael Allen, and Rosemary Belson. Slate Plus members get bonus segments and ad-free podcast feeds. Sign up now. Learn more about your ad choices. Visit megaphone.fm/adchoices