Extensive evidence documents health disparities for lesbian, gay, and bisexual (LGB) women, including worse physical, mental, and behavioral health than heterosexual women. Sarah McKetta, ScM, MD, PhD, discusses these factors and their link to premature mortality with JAMA Deputy Editor Linda Brubaker, MD, MS. Related Content: Disparities in Mortality by Sexual Orientation in a Large, Prospective Cohort of Female Nurses