We can use slow alternate nostril breathing immediately after learning a skill to improve that skill's short and long-term retention. More broadly and simply stated, this study supports using ANB after a task for enhanced learning.
HRVB (and, hence, slow breathing) is a powerful adjunctive therapy for managing a wide variety of chronic diseases. To be effective, it should be practiced for a minimum of 10 min/day (but probably 20+ for best results—see next section). More broadly, this study supports using slow breathing at around 5-6 breaths per minute in people with chronic diseases.