Because of the need to maintain strict head position while dancing, doctors often prescribe use of dance for those patients that need to develop their peripheral vision.
Destructors
Many historical waves of dances were perceived as the "destructors" of the old way of dance. Examples of that can be found in the 1920's Charleston and the era of Rock music.
Illegal in Sweden
Unlicensed dancing in public is illegal in Sweden including illegally moving your feet to music
