We have no idea just how many people are duped by lawyers and doctors to sign these kinds of directives.
What a shame. What a crime.
A "Will to Live" is better than a "Living Will" and can be downloaded to be used, or just used as an example, from www.nrlc.org.
Always make sure you know what you're getting into with a "living will." For instance, if you say: "I don't want to be on a respirator," it could mean one thing if it would only prolong an imminent death for months or years, and another thing if it would only be needed for 48 or more hours after an accident, and one could be restored to normal health.