While it’s not news to the scientific community that many animals – including human beings – have an internal, genetic circadian rhythm, mainstream society has not yet become fully aware of the variation in human circadian rhythm and just how important it really is. In 1935, two German zoologists, Hans Kalmus and Erwin Bünning, discovered circadian rhythms in fruit flies. The International Committee on Nomenclature of the International Society for… Read More »About Chronotypes