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EMBARGOED FOR RELEASE UNTIL 4 PM ET, June 11, 2007

Distress-Prone People More Likely to Develop Memory Problems

ST. PAUL, Minn – EMBARGOED FOR RELEASE UNTIL 4 P.M. ET, MONDAY, JUNE 11, 2007 Media Contacts: Angela Babb, ababb@aan.com, (651) 695-2789 Robin Stinnett, rstinnett@aan.com, (651) 695-2763 Distress-Prone People More Likely to Develop Memory Problems ST. PAUL, MN- People who are easily distressed and have more negative emotions are more likely to develop memory problems than more easygoing people, according to a study published in the June 12, 2007, issue of Neurology®, the scientific journal of the American Academy of Neurology. In the study, those who most often experience negative emotions such as depression and anxiety were 40 percent more likely to develop mild cognitive impairment than those who were least prone to negative emotions. Mild cognitive impairment is a transitional stage between normal aging and dementia. People with mild cognitive impairment have mild memory or cognitive problems, but have no significant disability. Researchers analyzed the results from two larger studies, the Religious Orders Study and the Memory and Aging Project. The studies involved 1,256 people with no cognitive impairment. During up to 12 years of follow-up, 482 people developed mild cognitive impairment. Participants were evaluated on their level of proneness to distress and negative emotions by rating their level of agreement with statements such as “I am not a worrier,” “I often feel tense and jittery,” and “I often get angry at the way people treat me.” “People differ in how they tend to experience and deal with negative emotions and psychological distress, and the way people respond tends to stay the same throughout their adult lives,” said study author Robert S. Wilson, PhD, of Rush University Medical Center in Chicago, IL. “These findings suggest that, over a lifetime, chronic experience of stress affects the area of the brain that governs stress response. Unfortunately, that part of the brain also regulates memory.” An earlier study by Wilson and his colleagues showed that people who are easily distressed are more likely to develop Alzheimer’s disease than more easygoing people. Wilson said several factors lead researchers to believe that proneness to stress is a risk factor for memory problems and not an early sign of disease. For example, while the level of distress does not appear to increase in old age, the changes in the brain related to memory problems and Alzheimer’s disease do increase with age. The study was supported by grants from the National Institute on Aging and the Illinois Department of Public Health.

The American Academy of Neurology, an association of more than 20,000 neurologists and neuroscience professionals, is dedicated to improving patient care through education and research. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as stroke, Alzheimer’s disease, epilepsy, Parkinson’s disease, and multiple sclerosis. For more information about the American Academy of Neurology, visit www.aan.com.


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