James Nestor, a NYT bestselling author whose book Breath: The New Science of a Lost Art inspired Mike to have a septoplasty, discusses the advantages of healthy breathing, the dangers of mouth breathing, and the reasons why our ancestors had larger mouths and straighter teeth. Then we share a song written by listener Bill Dumas in reaction to Mike's request for a ballad about his deviated septum and his father's swollen scrotum in Episode 203: There's a Hole in Daddy's Arm.