"The Second Shift" refers to the phenomenon where working women, after completing their professional duties, return home to take on the majority of household responsibilities and childcare. This term was popularized by sociologist Arlie Hochschild in her 1989 book, which explores the challenges faced by dual-income families. Hochschild's research highlights the imbalance in domestic labor, showing that even when both partners work full-time, women often end up doing more housework and parenting. This unequal distribution can lead to stress and conflict within relationships, as women juggle their careers and the demands of home life.