St Vitus Dance

Dancing mania or choreomania, from the Greek: χορεία (khoreia = 'dance') + μανία (mania = 'madness’) was a social phenomenon that occurred primarily in mainland Europe between the 14th and 18th centuries; it involved groups of people, sometimes thousands at a time, who danced uncontrollably and bizarrely, seemingly possessed by the devil. During the initial outbreaks of the mania, religious ceremonies were held in an attempt to exorcise the demons thought to be causing the mania. People commonly prayed to St. Vitus for aid, and he soon became the patron saint of the dancers - may be the frenzied movements of religious fanatics during the middle ages journeyed to the healing shrine of St. Vitus.
The phrase "St. Vitus' Dance", however, is in fact a name given to a syndrome known as Sydenham's chorea, characterized by rapid, irregular, and aimless involuntary movements of the arms and legs, trunk, and facial muscles in Rheumatic fever.

In third grade, Andy Warhol had St. Vitus' dance, which is believed to be a complication of ?scarlet fever and causes skin pigmentation blotchiness. He became somewhat of a hypochondriac, developing a fear of hospitals and doctors. Often bed-ridden as a child, he became an outcast among his school-mates and bonded strongly with his mother. When in bed he drew, listened to the radio and collected pictures of movie stars around his bed. Warhol later described this period as very important in the development of his personality, skill-set and preferences.