A new study by Harvard, the University of California, and the University of Washington says that American men can expect to live till they're 74 and women until they're 80.
That estimate is only six or seven years longer than when Kennedy was president and it really depends on where you live. Researchers have discovered that for two decades the US did such a good job treating heart disease that it offset everything else Americans were dying from.
Laurie Fenton Ambrose, of the Lung Cancer Alliance, says, "Lung cancer has been the leading cause of cancer deaths for decades, and a survival rate that has barely budged."
The study also found that one in five American women live in rural areas where they can't expect to live as long as the last generation did. It's partly because of fewer clinics in small towns but is mainly the result of poor diets, smoking, and a lack of exercise - all of which lead to obesity, chronic disease, and, in some cases, early death.