American Heart Association May 13 2026 Perimenopausal women were two times more likely to have a low cardiovascular health score compared to women having regular menstrual cycles, according to an analysis of nationwide U.S. data published today in the Journal of the American Heart Association, an open-access, peer-reviewed journal of the American Heart Association. Perimenopause is defined as the transitional period from the reproductive to the non-reproductive phase and is marked by hormonal