A living will and a healthcare power of attorney are often confused with each other, and sometimes with a regular will — but they serve two distinct purposes, and most complete estate plans include both.
A living will states your wishes directly
A living will (sometimes part of a broader advance healthcare directive) documents your specific wishes about end-of-life treatment — whether you want life support, artificial nutrition, or resuscitation under defined circumstances — for situations where you can't communicate them yourself.
A healthcare power of attorney names a decision-maker
A healthcare power of attorney appoints a specific person to make medical decisions on your behalf when you're unable to — covering situations a living will's specific instructions don't anticipate, since it's impossible to write instructions for every possible scenario.
Why relying on just one leaves gaps
A living will alone doesn't name anyone with authority to make decisions outside what it specifically addresses. A healthcare power of attorney alone gives your agent authority but no written guidance on your actual wishes, which can create tension between what a doctor recommends and what your agent believes you'd want.
Making sure they work together, not against each other
These documents should be drafted together and reference each other's authority consistently — inconsistent or conflicting language between the two is exactly the kind of ambiguity that creates confusion for family members and doctors during an already difficult moment.