An Advance Healthcare Directive, also known as a Living Will or Medical Power of Attorney, is a legal document in which you specify what actions should be taken for your health if you are no longer able to make decisions for yourself because of illness or incapacity.
The Advanced Healthcare Directive also tells the world, your physicians and healthcare agent under what circumstances further treatment should be withheld or when they should not resuscitate you in an effort to allow you to transition peacefully.