Jean Reimers, a 75-year-old retired supermarket cashier, enjoys her life in Grand Island, Neb., a small city near the Platte River that boasts attractions such as the Stuhr Museum of the Prairie Pioneer and a sandhill crane nature reserve. Nearly two years ago Reimers found out from her local doctor that she had cancer. The worse news was that it was late-stage metastatic lung cancer, hard to treat and with a dismally low survival rate. The standard approach in such cases is palliative care to keep dying patients comfortable. “It looked like I probably wouldn’t be around another year,” she says.