With a health care power of attorney, you give another person (e.g. a relative) the authorization to make decisions in the event of an emergency situation, if you yourself are no longer capable of acting. Such an incapacity can occur, for example, due to an advanced disease of dementia or also in the case of a disturbance of consciousness (coma), since you can no longer make decisions and express your will yourself.In order for a health care power of attorney to be legally effective, the grantor of the power of attorney must have full legal capacity to authorize another person or must have free will. It is advisable to have a health care power of attorney drawn up by a notary, as he or she can provide you with comprehensive advice and explain all the legal effects of such a power of attorney.