To beat Mr McCain in November, Mr Obama must persuade Americans that youth and intelligence trump age and experience.
The new study, published in the journal Nature, offers one of the first estimates of how much genes and the environment contribute to fluctuations in a person's intelligence between adolescence and old age.
One finding of this technique, which is known as genome-wide complex-trait analysis, is that many of the same genetic factors seem to explain why people differ in intelligence in childhood and old age.
Another finding is that people tend to retain a similar "rank order" in intelligence level between childhood and old age.
My Intelligence Advisory Board will examine the longer-term challenge of sifting through vast universes of intelligence and data in our Information Age.
My Intelligence Advisory Board will examine the longer term challenge of sifting through vast universes of -- of intelligence and data in our information age.
The scientists behind the Nature paper were able to do their analysis thanks to an unusual database maintained in Scotland: records from 1, 940 unrelated individuals whose intelligence was measured first at age 11 and then again at age 65, 70 or 79.
At age 36 Drucker says he founded Social Intelligence Corp. earlier this year and that he is backed by professional money.
It is rare for researchers to have access to intelligence data for a group of people from both childhood and old age.
This fellowship was established in memory of Nico Colchester, who died in 1996 at the age of 49, after an outstanding career at the Financial Times, The Economist and the Economist Intelligence Unit.
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