May be the best way to live to be 100? It’s to have longevity in your genes. A new study shows that reaching extreme old age is most likely a family tradition.

Harvard Medical School researchers looked at the family trees of four American families with longevity and found some amazing statistics. For example, in one family, 50 percent of 46 members of one generation lived to ages 90 to 106, according to a report in the Journal of the American Geriatrics Society.
Could there be a Gene for Longevity ?