Hi I'am new to this board but I usally go to the depression board. I was looking on the internet for information on st vitus dance and was told I could come here. My mother was a foster child but she found out who her biologial mother was. My mother as since passed away so I can't ask her but she was told her real mom and aunt had st. vitus dance. Does anyone know what that that is? And is it hereditary? The only thing I know is it has something to do with the heart.