Research
Boost Immune System
Chronic Stress May Influence Effectiveness Of Vaccines
3-1-2001
Chronic stress can have an impact on the overall effectiveness
of immunizations designed to protect against infectious
diseases such as flu, hepatitis and pneumonia according
to a critical review of published studies. The news could
be important to people who have suppressed immune function,
especially the elderly.
Carnegie
Mellon Psychologist Sheldon Cohen said that the reviewed
studies "support an association between psychological
stress and suppression of the humoral immune (antibody)
response to immunization." Although flu shots and other
vaccines are designed to create a strong immune response,
chronic stress apparently can reduce the amount of illness-fighting
antibodies that our bodies produce.
"It
is interesting that the effectiveness of vaccines that were
designed to elicit a big immune response is reduced among
people suffering chronic psychological stress," Cohen
commented. While flu and other vaccines are still effective,
Cohen said that it is possible that the shots will be "less
effective among the severely or chronically stressed."
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A research team from the Pittsburgh Mind-Body Center,
a joint effort of Carnegie Mellon and the University of Pittsburgh,
wrote the review. It was published in Psychosomatic Medicine.
This
story has been adapted from a news release issued by Carnegie Mellon
University, www.cmu.edu.
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