A more scientific approach to this issue was implemented in the XIX century, when prominent scientists of the time - Pavlov, Sechenov and others - studied the way in which the climate affects people in the Petersburg Academy of Sciences.
A ngaphezulu izindlela ezintsha zesayensi zokufunda le nkinga iye yenziwa ngekhulu XIX, lapho Petersburg Academy of Sciences ososayensi abaqavile bangaleso sikhathi - Pavlov, Sechenov nabanye - wafunda indlela sezulu kuthinta abantu.