The “four tempers” in AppleTV+’s hit show, ‘Severance,’ were inspired by the four temperaments, an ancient Greek philosophy ...

Developed by ancient Greek thinkers in the 5th century BCE, the theory of the four humors continued to develop during the ...

The original, Hippocratic philosophy of the four temperaments in relation to the bodily humors were abandoned around 1850 and are no longer accepted in the canon of Western medicine.