David Jackson is a Master Instructor with Oxygen Advantage as well as a UKSCA accredited Strength & Conditioning Coach. He played professional rugby for Nottingham until he suffered a season-ending brain injury in 2013.  Through his recovery, David had to retrain his breathing mechanics and improve respiration. Now he helps others overcome their limitations improve their performance through breathwork. 

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Checkout David's Website 

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Books that changed my life: 

Deep by James Nestor

Breath by James Nestor 

Oxygen Advantage by Patrick McKeown