One of us is a 100-year-old physician who has been in an ongoing research study since 1917, and the other is a baby-boomer health researcher who has been heavily involved in conducting that remarkable study.
The discoveries of The Longevity Project give us probabilities and cannot say with certainty how healthy a person will remain and how long any individual will live, but things are looking really good for President Obama.
On the "Today Show," Leslie pointed out that you cannot understand much about the causes of health and long life by studying only people who succeeded. They don't really know the answer.
The first four U.S. presidents -- Washington, Adams, Jefferson and Madison -- plus Benjamin Franklin -- lived an average of more than 82 years, and they did so without the benefit of modern medical care.
In 1990, two psychologists embarked on a research project seeking answers to the question, "What makes for a long life?" Divorce, it turns out, plays a significant role in longevity, particularly for children of divorce.