Personal finance expert Dave Ramsey has joked that to show you hate your family, "leave unclear instructions and no will." Without knowing your final wishes, those close to you could fight over your estate or wind up paying your end-of-life costs themselves. If your loved ones struggle to manage the probate process, the burden may also affect them physically and emotionally.

If you want to talk to a loved one about an advance health-care directive, you may not know where to begin. Here is some advice on how to plan the conversation, how to broach the topic, and what to say.