Wim Hof got his nickname “The Iceman” by breaking a number of records related to cold exposure including: climbing Mount Kilimanjaro in shorts, running a half marathon above the Arctic Circle barefoot, and standing in a container while covered with ice cubes for more than 112 minutes.
Using “cold, hard nature” as his teacher, his extensive training has enabled him to learn to control his breathing, heart rate, and blood circulation and to withstand extreme temperatures.