@littlek,
There are some newer studies that have taken off from Framingham. Theres a study on the benefits (or not) of a mediterranean diet on BP(LYONS diet), theres a study of ethnographic factors on BP by looking at several populations of Slavic, Irish, and AMerican Indian (I thinkthat this study is waaay too optimistic and has not considered all the variables so Im not holding out any positive net results).
These and many more studies are attempting to look at the relationships of early life anomalies and chronic e care for cardiac related symptomology (My favorite is the study on th relationhip of diabetes and cardiac stress).
Well, you asked, and any of us who are BP care patients have years of experience and some knowledge that we pump out of our medical mechanics .