The number of cancer survivors in the U.S. will rise from 13.7 million today to 18.0 million in 2022, according to the American Association for Cancer Research. This increase will be driven by the aging population, with two-thirds of cancer survivors being age 65 years or older within 10 years. Today, women with breast cancer account for about one-fifth of survivors and men with prostate cancer account for another one-fifth, reflecting strides in diagnosis and treatment. Five-year survival rates are now nearly 89% for breast cancer and nearly 100% for prostate cancer. However, people with lung cancer account for just 3% of today’s survivors, underscoring the need for better ways of diagnosing and treating this illness.