Health News, Obstetrics & Gynecology

Brain’s Reward Circuit Activity Ebbs and Flows with a Woman’s Hormonal Cycle

February 2, 2007---Fluctuations in sex hormone levels during women’s menstrual cycles affect the responsiveness of their brains’ reward circuitry, an imaging study at the National Institute of Mental Health (NIMH), a component of the National Institutes of Health (NIH), has revealed. While women were winning rewards, their circuitry was more active if they were in a menstrual phase preceding ovulation and dominated by estrogen, compared to a phase when estrogen and progesterone are present.

Read more: Brain’s Reward Circuit Activity Ebbs and Flows with a Woman’s Hormonal Cycle

Study: Osteoporosis Drug Raloxifene Shown to be as Effective as Tamoxifen in Preventing Invasive Bre

(April 17, 2006)--Initial results of the Study of Tamoxifen and Raloxifene, or STAR, show that the drug raloxifene, currently used to prevent and treat osteoporosis in postmenopausal women, works as well as tamoxifen in reducing breast cancer risk for postmenopausal women at increased risk of the disease.

Read more: Study: Osteoporosis Drug Raloxifene Shown to be as Effective as Tamoxifen in Preventing Invasive Bre