Good news on the cancer front: More people than ever are surviving it. Since 1990, cancer death rates have fallen by 20% to 35% in the United States, Canada and Western Europe. That translates into more than 7 million averted deaths. The decrease is partly because powerful new treatments, such as immunotherapies and molecularly targeted treatments, arrived on the scene during the past three decades. Meanwhile, improvements to older treatments, like radiotherapy and surgery, have made them safer and more effective. We can also thank the declining smoking rate, technological innovations that help us detect tumors sooner, and organized screening programs for colorectal, breast and cervical cancers.