There's a little village in the mountains of Italy where the majority of the population is descended from one man. People with his family name have a statistically lower chance of heart disease, so low in fact that it's simply unfair. They eat all kinds of hearty Italian foods, and stay healthy into very late years of life. The people in the village know of the reputation for longevity and they usually marry into their own (very large) extended family because of that reputation. Some geneticists have been studying in that village. They contacted me for a blood sample once.
So, uh, get that IV away from me and help those geneticists study the DNA samples, for the good of all mankind and my health...