Bioethicist Ruth Macklin

While caring for her mother, who had dementia, bioethicist Tia Powell began imagining a different way to approach the disease. Her new book looks at long-term care options and end-of-life decisions.

In a new book, bioethicist and internist Barron Lerner recalls how he came to question some of his father's medical practices — practices that were common among many doctors of that generation.

In 2008, a cycling accident left bioethicist Margaret Battin's husband quadriplegic and dependent on life support technology. The accident forced Battin, a right-to-die advocate, to reflect on the positions she's taken in the past and decide whether she still believes in them.