ScienceDaily (Aug. 18, 2009) — Personality traits associated with chronic worrying can lead to earlier death, at least in part because these people are more likely to engage in unhealthy behaviors, such as smoking, according to research from Purdue University.
"Research shows that higher levels of neuroticism can lead to earlier mortality, and we wanted to know why," said Daniel K. Mroczek, (pronounced Mro-ZAK) a professor of child development and family studies. "We found that having worrying tendencies or being the kind of person who stresses easily is likely to lead to bad behaviors like smoking and, therefore, raise the mortality rate.
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They found that smoking accounted for about 25 percent to 40 percent of the association between high neuroticism and mortality. The other 60 percent is unexplained, but possibly attributed to biological factors or other environmental issues that neurotic individuals experience, Mroczek said.
Stress hormones probably are part of the problem.
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