THROUGHOUT the 20th century, it was an American birthright that each generation would live longer than the last. Year after year, almost without exception, the anticipated life span of the average American rose inexorably, to 78 years in 2005 from 61 years in 1933, when comprehensive data first became available.
But new research shows that those reassuring nationwide gains mask a darker and more complex reality. A pair of reports out this month affirm that the rising tide of American health is not lifting all boats, and that there are widening gaps in life expectancy based on the interwoven variables of income, race, sex, education and geography....
The New York Times - April 27, 2008
http://www.nytimes.com/2008/04/27/weekinreview/27sack.html?ex=1366948800&en=0798aa2af57259d7&ei=5088&partner=rssnyt&emc=rss