Over the last 50 years, women have made extraordinary advances in athletics, accomplishing incredible feats and smashing long-held beliefs about the limits of their physical capabilities. Here, sports and health journalist Christine Yu disentangles myth and gender bias from real science, making the case for new approaches that can help women athletes excel at every stage of life, from adolescence to adulthood, through pregnancy, menopause, and beyond. She explains the latest research and celebrates the researchers, athletes, and advocates pushing back against the status quo and proposing better solutions to improve the active and athletic lives of women and girls.