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Scientists scanned and studied the brains of several women who volunteered to be involved in research that looked at changes in brain activity according to menstrual hormonal influences. They found that the regions of the brain that are involved in emotions experienced heightened activity around menstruation, supporting a biological basis for premenstrual syndrome. The women were reported to feel no change in emotional behaviour during this time. Premenstrual syndrome can present with irritability, depression, cramping and abdominal bloating. The scientists are encouraging doctors to consider a womanís time of the month when interpreting MRI brain scans and emotional state in future.
Source: summary of medical news story as reported by BBC News
About: Brain activity affected by monthly changes
Date: 25 October 2005
Source: BBC News
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