“No, Kapalabhati is not Sanskrit for ‘bathroom break’ or ‘take a sip of water,’ ” I’m often tempted to joke to my students in order to encourage participation in what seems to be yoga’s most underappreciated breathing exercise. However, I understand; I used to find this powerful pranayama technique challenging and uncomfortable—and consequently, tried to avoid it too. After learning about and experiencing some of the physical, mental, and energetic ...