What are wim hoff exercises?
Initial scientific evidence related to auto-immune diseases here [3], although please don't mistake interviews with Hof with science. For example his comments about "charging your body with oxygen" and "alkaline blood" are completely off; a proper explanation can be found here [4].
[1] https://www.youtube.com/watch?v=tybOi4hjZFQ
[2] https://www.youtube.com/watch?v=RpUkR47dmjU
[3] https://www.pnas.org/content/pnas/111/20/7379.full.pdf
[4] https://www.daniel-timms.com/wim-hof-method-biology-of-breat...