Modern medicine can be good at keeping us alive longer, but what about improving the days we have left? Barbara Bush's decision to seek "comfort care" resonated with many who are dealing with end-of-life choices. We consider the limits of modern medicine with one passionate advocate — Diane Rehm. | Want to support 1A? Give to your local public radio station at donate.npr.org/1A and subscribe to our podcast. Have questions? Email the show at 1a@wamu.org and find us on Twitter @1a.