The New York Times: After a user explores Prepare with family members — the approach Dr. Sudore encourages — the Web site consolidates the responses into a summary and creates an action plan: things still to talk about, tell someone, commit to writing. So add it to the lengthening list of tools designed to help you figure out what you want and who you want to help you before health crises strike. Like The Conversation Project, launched by journalist Ellen Goodman, Prepare aims to foster discussion, not just generate forms. But if you live in a state with the POLST system for informing doctors of your preferences, that represents another strong option. Readers have also recommended the Five Wishes Web site. I hope you’ll pick one approach and begin. Age alone is no predictor of when these issues crop up. I’m 63, and my daughter has already grown slightly weary of such discussions, but she’s got my advance directive and she knows how I want her to use it. Just as I used to mock-intone in her youth: Some day you’ll thank me.