I recently attended an end-of-life planning session at Kaiser Permanente. My mother is very pro-active about planning for her death (she is currently a healthy 67 year old). I am the youngest of four and I am honored that she has selected me to be her care agent to make those hard decisions should any accidents or illness arrive. The Advance Care Directive is something she fills out that describes preferences such as how much life-support to be on and even nice things like what kind of music she prefers to hear, or what lotion does she like so that we can make everything as comfortable as possible should she be in that situation to need our care. The Kaiser materials on the matter are here.