That is an interesting question, it brings to mind the actress, who used to play the mother in the comedy show with Emma something, she played the boyfriends mum, small lady, not the one that was the nurse in Romeo & Juliette, anyway, she could do the splits I recall, so.... in about 1994 or 5 she attended a conference I attended at I think The Society of Genealogists and it was about genetically inherited conditions. I would need to think abit harder about it but I know there was a new type of family history research emerging at that time that was very involv ed in the genetics and inherited diseases. I shall try to remember more but if you google The Society of Genealogists you should find something.