The biology behind PMDD

Researchers are into the second of a five year National Institutes of Mental Health study exploring the link between Premenstrual Dysphoric Disorder (PMDD) and a history of physical or sexual abuse.  Studies suggest that there may be a biological alteration that occurs among women with PMDD.  Susan Girdler, Ph.D., professor of psychiatry and member of the Premenstrual Dysphoric Disorders Studies Program hopes to find an answer.