Have a Purpose in Life? You Might L...( Longevity joins physical psychologica...),Health

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TUESDAY, June 16 (HealthDay News) -- If you have a purpose in life -- lofty or not -- you'll live longer, a new study shows.

It doesn't seem to matter much what the purpose is, or whether the purpose involves a goal that's ambitious or modest.

"It can be anything -- from wanting to accomplish a goal in life, to achieving something in a volunteer organization, to as little as reading a series of books," said study author Dr. Patricia Boyle, a neuropsychologist at the Rush Alzheimer's Disease Center and an assistant professor of behavioral sciences at Rush University Medical Center in Chicago.

"We found that people who reported a greater level of purpose in life were substantially less likely to die over the follow-up period -- only about half as likely to die over the follow-up period -- as compared to people with a lower level of purpose," Boyle said. The follow-up period averaged nearly three years.

Boyle and her colleagues studied 1,238 older adults already participating in two ongoing research studies at Rush, the Rush Memory and Aging Project and the Minority Aging Research Study. The participants were all dementia-free when the study began and averaged 78 years old.

At the start of the study, the participants answered questions about their purpose in life, rating themselves on different areas meant to measure the tendency to derive meaning from life and to feel that one is working toward goals.

The average score on the sense-of-purpose evaluation was 3.7 of a possible 5, Boyle said.

When comparing scores, Boyle found that those with a higher sense of purpose had about half the risk of dying during the follow-up period as did those with a lower sense of purpose. And that was true, she said, even after controlling for such factors as depressive symptoms, chronic medical conditions and disability.