Study Reveals Brain Mechanisms That Allow “Iceman” Unusual Resistance to Cold

Practice of the Wim Hof Method made Hof’s skin temperature relatively invariant to cold exposure, a finding the researchers attributed to his increased sympathetic innervation and glucose consumption in intercostal muscle revealed by PET imaging. The method appeared to allow him to generate heat that dissipates to lung tissue and warms circulating blood in the pulmonary capillaries.

Source: wayne.edu