PROJECT SUMMARY/ABSTRACT Women and men are at different risks for the onset, expression, and treatment response in a number of disorders that occur at different stages of the lifespan, from development through aging. The mechanisms that explain these sex differences or disorders specific to women are still unclear. The mission of our Harvard BIRCWH is to develop the next generation of scientist-clinicians as leaders in the field of women’s health who will contribute to understanding sex-dependent vulnerabilities to clinical disorders and those disorders specific to women. This administrative supplement application seeks to recruit a 4th BIRCWH Scholar to increase our representation of Scholars who are underrepresented in medicine in our Harvard BIRCWH integrated interdisciplinary training program. The program is modeled in the context of a lifespan perspective to identify etiologic mechanisms during fetal development, puberty, adulthood, and aging, with some focus on female- specific periods such as child-bearing years and menopause. Further, an underlying assumption of our BIRCWH program is that an understanding of the role of hormones and genes will provide the basis for understanding sex-dependent vulnerabilities to clinical disorders. The Division of Women’s Health at Brigham and Women’s Hospital (BWH) is and will continue to be the home site for this endeavor, in the broader context of a Harvard-wide training program. The program capitalizes on the long tradition of interdisciplinary research in women’s health with Mentors who already collaborate across institutions at BWH, Massachusetts General Hospital, Beth Israel-Deaconess Medical Center, Boston Children’s Hospital, Dana Farber Cancer Institute, McLean Hospital, Harvard School of Public Health, Harvard Medical School and the Eli & Edythe Broad Institute. Each of the two Scholars is assigned a team of Mentors in order to operationalize the concept of training Scholars to think in a translational manner. Primary Mentors are in clinical or basic research and provide the site at which the Scholar works. Secondary Mentors are in basic or clinical research (as a counterpart to the Primary) and help to guide thinking, suggest coursework, and readings, depending on the Scholar’s interests. Career Mentors advise Scholars in the relevant departmental and academic structures for career advancement. Mentors in Health Disparities expose Scholars to thinking about how the roles of hormones and genes in predicting morbidity are influenced by socioenvironmental factors. The Harvard BIRCWH program focuses on the following disorders, given either their known higher incidence and/or differential expression in women than men and the strengths of the Harvard community in women’s health: Cardiovascular Disorders; Reproductive Endocrine & Neuroendocrine Disorders; Neuropsychiatric Disorders; Autoimmune Disorders; and Female Cancers. By capitalizing on the vast resources and faculty at Harvard, we believe that ...