As a fact our thermoregulation system does interpret an air temperature of say 20°C not always and not ever as 20°C. Instead, the thermoregulation system uses a thermophysiologically equivalent air temperature which is represented by the Biowetter DE parameter UTCI (Universal Thermal Climate Index, defined by the International Society of Biometeorology). The UTCI includes pressure variations, windchill effects as well as actinic and hygric parameters.
