Physiognomy Blood Humor
... Blood Humor, Black Bile, Yellow Bile (choler), and Phlegm, are the "Four Humors" of which Chaucer implies that his characters have an imbalance. Two of the seven deadly sins, gluttony and lust, are categorized by Blood Humor. Three characters in the Tales that exemplify this "red" humor are The Squire, The Miller, and The Summoner. ... This line tells us that the Squire has either a red face, or red hair, or both, which is an excellent indicator of a Blood Humor imbalance. According to Physiognomy, a red complexion, red hair, and red clothing all symbolize Blood Humor. ... He was a large man, and Chaucer hints towards the Millers blood humor imbalance with the mention of red, "His beard, like any sow or fox, was red" (568).