December 12, 2025 Expansion and Contraction: Dual Autonomic Breathing Protocols Gamma & Delta: A pair of breathing exercises built atop the Wim Hof protocol, activating either the sympathetic or the parasympathetic nervous system. Migrated to Substack - Read Here Disclaimer: Do not attempt these methods if you’re new to breathing exercises, have any medical conditions, or aren’t sitting/laying down.Click here for a more comprehensive disclaimer if unsure. Share Share Share on Facebook Tweet Tweet on Twitter Pin it Pin on Pinterest Share Share Share on Facebook Tweet Tweet on Twitter Pin it Pin on Pinterest