Stress and trauma can be a big part of a warrior’s life, including women warriors. Today, one in seven in active U.S. military service is a woman. New research by Aoife O’Donovan, PhD, a UCSF scientist from the San Francisco VA Medical Center, suggests that women may be more vulnerable to post-traumatic stress disorder (PTSD). Women with PTSD might be more likely than men with PTSD to be biologically affected in ways that may hasten aging, and that increase risk for diseases of aging.