Did you catch the article, "Exploring your health roots," in yesterday's Cleveland Plain Dealter? In it, PD Reporter Evelyn Theiss strongly suggests that the holiday season that starts tomorrow "is a good time to create a family tree that looks at relatives' medical histories." The article also is available online here.
In this connection, I'd like to point out a resource that is readily available and wasn't reported in the PD article. That is the family medical history tool provided free by the U. S. Surgeon General. It is available here.
I have summarized my own medical family history experience on my other blog, Collecting Ancestors, which you can access by clicking here.