The Power Shower Turn the shower to hot and wash. Do Wim Hof breathing (thirty to fifty breaths, or until you feel tingling and/or mild light-headedness). Turn the shower as cold as it can get. Continue Wim Hof breaths until breathing calms. Hold at the bottom of breath until the gasp reflex kicks in. Optional: Repeat breathing cycle up to twice more, at your discretion, with cold water running continuously or with periods of warm water between cycles to create contrast. Total cold water exposure = ~3 minutes
