Eating disorders weigh heavy upon the U.K. population, afflicting
an estimated 165,000 people. Women are at the greatest risk, making
up an overwhelming 90 percent of those suffering from these disorders.
Even more disarming, one in 10 will pay the ultimate price -- their
life.
The way women process information in their brain might put them
in a higher risk bracket of developing eating disorders
During this study scientists discovered that certain words used
to describe body image were processed as threatening among women's
brains and in a rationale way among men's brains.
The Two Most Devastating Eating Disorders
- Anorexia: Starving the body of food
- Bulimia: Binge eating followed by purging
- Account for the highest number of deaths among psychiatric patients
- Common causes include genetic make-up, stress at school, depression
and death in the family
- Both conditions are closely linked to mental illness
The 26 participants involved in the study were asked to read two
separate lists of words: one set contained unpleasant words used
to describe body images while the other was a neutral set of words.
While scoring the images in terms of how pleasant or unpleasant
they were perceived to be, researchers scanned the participant's
brains using magnetic resonance. This was done to determine the
specific parts in the brain that were stimulated during the experiment.
Unpleasant words were found to illicit a greater emotional response
from women. Researchers explained that this was due to the amygdala,
a part of the brain that becomes active when a person experiences
threatening feelings, which showed signs of stimulation during the
experiment.
The men, on the other hand, had the tendency to process the words
in a logical manner. Unlike the women, the area of the brain that
was stimulated in the men was called the medial prefrontal cortex,
which is more often related to rationalizing.
Experts hope to use these findings as a launching point to better
understand eating disorders and what triggers their onset. The findings
may also help explain why women are 10 times more inclined than
men to develop these disorders.
British
Journal of Psychiatry January 2005;186:48-53
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