Two studies examine recipe for longevity

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Have a grandmother in her 80s or an uncle in his 90s? Then the National Institutes of Health may want to hear from you.

The NIH's National Institute on Aging is now recruiting families to participate in a study about aging and the secrets to a long and healthy life. Researchers will conduct the study at three sites in the United States and one in Denmark. Potential U.S. recruits will come from areas by study centers at Columbia University in New York City, the University of Pittsburgh and Boston University.

To find out more about participating in the NIH study, call the centers at the following numbers: Boston University: (888) 333-6327, University of Pittsburgh: (800) 872-3653 and Columbia University: (800) 304-4317.

In related news, older adults who expend more energy through any daily activity are less likely to die than those who are less active, according to a study in this week's Journal of the American Medical Association.