TEMPERATURE changes affect the body and the organs especially the blood flow, which increases with greater temperature and decreases with cold! Cold Sauna causes decrease of blood flow in the surface structures like skin while diverting the blood towards the central circulation, thus increasing blood flow in the internal visceral organs like liver, heart, brain etc! Reverse direction of blood flow diversion from central to peripheral towards skin happens with Summer Sauna! PhysiologyWalla advocates to enjoy both sauna periodically! Welcome and Thanks!