The term "Magic Bullet" refers to a theoretical treatment that effectively targets a specific disease without harming surrounding tissues. It was popularized by the German scientist Paul Ehrlich in the early 20th century, who envisioned a drug that could selectively eliminate pathogens while leaving healthy cells unharmed. This concept has influenced the development of various targeted therapies in medicine. In modern contexts, "Magic Bullet" is often used metaphorically to describe any solution that promises to solve a complex problem quickly and easily. However, in reality, most health issues require multifaceted approaches, and no single treatment can address all aspects of a disease effectively.