Glossary: Living Will

A living will is a legal document that states your medical treatment preferences if you can no longer communicate your decisions.

It provides guidance on medical treatments in end-of-life situations, typically focusing on life support and other interventions. It ensures that doctors and caregivers follow your wishes in situations such as severe illness, coma, or end-of-life care.

It typically covers decisions about life-sustaining treatments like ventilation, resuscitation, artificial nutrition, and pain management.

A living will does not appoint a decision-maker. It only documents your preferences. For that, you need a healthcare power of attorney.

Check out our guide on how to write a living will for more info!

What a living will does

A living will provides binding instructions to medical professionals about your treatment preferences.

It helps:

  • reduce uncertainty for doctors
  • prevent unwanted medical interventions
  • relieve family members from making difficult decisions under pressure

It becomes relevant only when you are unable to communicate your own decisions.

When you need it

You should have a living will as soon as you want clarity over future medical decisions, especially if you want to avoid leaving difficult choices to family members.

Without one:

  • doctors will follow standard medical protocols
  • family members may need to guess your wishes
  • disagreements between relatives can occur

With a living will:

  • your wishes are clearly documented
  • decisions are easier and faster
  • your autonomy is preserved, even when you cannot speak

What a living will covers

A living will usually includes preferences on:

  • life-sustaining treatments (e.g. ventilation, CPR)
  • artificial nutrition and hydration
  • pain management and palliative care
  • organ donation preferences (sometimes handled separately)

The level of detail can vary—from general principles to very specific instructions.

What a living will does NOT do

A living will does not:

  • appoint someone to make decisions for you
  • cover financial or legal matters
  • replace a healthcare power of attorney

If you want someone to actively make decisions on your behalf, you need a Healthcare Power of Attorney in addition.

When a living will applies

A living will is used in situations such as:

  • coma or unconsciousness
  • severe brain injury
  • advanced illness where communication is no longer possible
  • end-of-life scenarios

It only takes effect when you are incapable of making or expressing decisions yourself.

Common mistakes

Some common issues people encounter:

  • confusing a living will with a healthcare power of attorney
  • writing vague or overly general instructions
  • not updating the document over time
  • not informing family or doctors that it exists

A living will is only effective if it is clear, accessible, and known to others.

Related documents

  • Healthcare Power of Attorney
  • DNR Order
  • Guardianship Directive
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