Apparently there is an app from the U.S. Surgeon General and the Centers for Disease Control and Prevention that allows you to make a tree that highlights health conditions that have passed down in the family.
The web of our life is of a mingled yarn, good and ill together. – William Shakespeare
Ann Cushman provides a marvelous resource of odds and ends and tidbits and stuff from the unusual to the amusing. In between, you might find a clue or a new source of information to aid your research.