(1) An adult can make a direction (a health direction ) to refuse, or require the withdrawal of, medical treatment generally or a particular kind of medical treatment.
(2) A health direction may be made in writing, orally or in any other way.
(3) However, a health direction cannot be made by—
(a) a person for whom a guardian is appointed under the Guardianship and Management of Property Act 1991
; or
(b) anyone else who has impaired decision-making capacity.