The majority of Americans do not have an advance directive or living will. These documents are very important and help to communicate your wishes to your health care team and your loved ones if you are ever in a position where you cannot speak for yourself.
I encourage you not to put this off until "later". Think of it as a gift to your loved ones that brings much clarity, peace, and reassurance should they ever have to make difficult decisions on your behalf.
Advance Directives
POLST
Where can I find a free advance health care directive?
https://www.freewill.com/advance-healthcare-directive
(please share a copy with your health care team)
What does DNR mean?
https://medlineplus.gov/ency/patientinstructions/000473.htm
What is the difference between palliative care and hospice?
https://medlineplus.gov/ency/patientinstructions/000536.htm