The science behind breathwork lies in its effects on the autonomic nervous system (ANS). The ANS controls essential functions such as heart rate, digestion, hormone release and stress response. It consists of two branches - the sympathetic nervous system (SNS), which triggers the 'fight or flight' response when we perceive danger or stress; and the parasympathetic nervous system (PNS), which promotes relaxation and restorative processes.

Although it may be having a moment, Breathwork has been around for thousands of years and has been used within many cultures and as part of different traditions and practices.