When Kate Washington and her husband, Brad, learned that he had cancer, they were a young couple: professionals with ascending careers, parents to two small children. Brad’s diagnosis stripped those identities away: he became a patient and she his caregiver. Brad’s cancer quickly turned aggressive, necessitating a stem-cell transplant that triggered a massive infection, robbing him of his eyesight and nearly of his life. Kate acted as his full-time aide to keep him alive, coordinating his treatments, making doctors’ appointments, calling insurance companies, filling dozens of prescriptions, cleaning commodes, administering IV drugs.