<P> The humors can be found in Elizabethan works, such as in Taming of the Shrew, in which the character Petruchio pretends to be irritable and angry to show Katherina what it is like being around a disagreeable person . He yells at the servants for serving mutton, a "choleric" food, to two people who are already choleric . </P> <P> Foods in Elizabethan times were all believed to have an affinity with one of these four humors . A person showing signs of phlegmatism might have been served wine (a choleric drink and the direct opposite humor to phlegmatic) to balance this . </P> <P> The concept of balance in health, a key feature in the humoralist theory, is still prevalent in modern Western culture . The dietary guidelines put forth by the United States Department of Agriculture recommend finding a "balance between food and physical activity". The contemporary view of a healthy lifestyle in Western culture emphasizes the historically influential concept of balance . </P>

Who created the theory of the four humours