Those who underwent the Wim Hof Method also had fewer flu-like symptoms.
The authors of the 2014 study stated: “The present study demonstrates that, through practising techniques learned in a short-term training program, the sympathetic nervous system and immune system can indeed be voluntarily influenced.”
Another study in 2019, found that an eight-week Wim Hof method course on adults with axial spondyloarthritis – an inflammatory disease, had a reduction in the traces of inflammation, known as inflammatory markers.
Hof said: “You are the ruler within your own mind and body, and this is the mindset [that you should have]. … You should actually become alchemists in the morning.
“The cold shower will help your vascular system, … and the breathing exercises [transform] your body.