The chronotype is not learned, but follows a genetic predisposition. As a result, we cannot choose whether we are early or late types. I am therefore often asked whether the chronotype can be changed over the course of life or by certain external factors. My answer is: Yes and no! The basic chronotype does not change. Anyone who is anRead More →

Bear, wolf, dolphin, tiger, gorilla, lion – a completely different chronotype-definition comes from America, that we address here at least once and with the classic chronotypes owl, dove and lark. Michael J. Breus, Ph.D., is a clinical psychologist and a member of both the American Board of Sleep Medicine and the American Academy of Sleep Medicine. According to his websiteRead More →