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Distress-Prone People More Likely To Develop Memory Problems
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 by researchers at Rush University Medical Center
published in the June 12 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 of 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, neuropsychologist, Rush Alzheimer's Disease Center. "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 Rush Alzheimer's Disease Center is one of 29 NIA-supported Alzheimer's
Disease Centers across the U.S. which conduct basic science, clinical, and
social and behavioral research on dementia and AD. General information on
aging and aging research can be viewed at the NIA's home website,
http://www.nia.nih.gov.
For more information on the Rush Alzheimer's Disease
Center, visit http://www.rush.edu.
Primejdie expuse mai multe persoane susceptibile de a dezvolta probleme de memorie - Distress-Prone People More Likely To Develop Memory Problems - articole medicale engleza - startsanatate