Is nasal breathing better for running? David ’Jacko’ Jackson, former professional rugby player forced to retire in 2013 due to traumatic brain injury, recently ran up & down Mount Snowdon 6 times in 24 hours. He also ran a 216km Ultra Marathon, breathing just through his nose. In this episode of Runchatlive Podcast, he discusses how efficient functional breathing using the nose instead of the mouth can be key in not just recovery from brain injury but also improving athletic performance.