Analysis of temperature elevation in older individuals for far-field microwave exposures

In our previous study, with numeric Japanese male model, we clarified the difference of thermoregulatory response between the younger and older adults. In this study, we investigate core temperature elevation and perspiration in younger and older adults for plane-wave exposure at 0.4 W/kg by taking into account the thermoregulatory response of younger and older adults. The frequencies considered were at 65 MHz and 2 GHz. From our computational results, the core temperature elevation in the older adult model was larger than that in the younger adult at both frequencies. The reason for this difference is attributable to the difference of sweating, which is originated from the difference in the threshold activating the sweating.