We all hope for a breakthrough in the cure for cancer. Thankfully, scientists are making progress in the fight against this and many other devastating diseases. But on occasion, an innovation well outside of the health care sector can make a big difference in matters of life and death. And there is one such innovation where older people are missing out. New research shows that the introduction of ridesharing services has dramatically reduced trauma stemming from car accidents. This isn’t the first such study, but it adds to a mounting collection of studies with findings that allow for better planning and decision-making. Ridesharing companies, such as Uber and Lyft and another 88 or so competitors globally, have been in operation for about a decade, and the business model that depends on web applications and mobile app technology has proliferated to nearly every large city around the world. Since the first …