When this happens the artery narrows and blood flow to part of the heart muscle decreases or stops. We're not sure what causes a spasm. A spasm can occur in normal-appearing blood vessels as well as in vessels partly blocked by atherosclerosis.A severe spasm can cause a heart attack.hen this happens the artery narrows and blood flow to part of the heart muscle decreases or stops. We're not sure what causes a spasm. A spasm can occur in normal-appearing blood vessels as well as in vessels partly blocked by atherosclerosis.
If this happens â and you have not executed a durable power of attorney â then the court may decide who will act on your behalf. Known as guardianship and conservatorship proceedings, these court actions can consume time and money and leave the decision of who will handle your affairs in the hands of a judge.
An enduring power of attorney for personal care and welfare can only begin when you lose the mental capacity to make your own decisions. There are several ways for the EPA to end or be revoked: 1  It is revoked automatically when you, the donor (the person who has given someone power of attorney), dies.. Ordinary or general power of attorney: is where you give a person (or more than one person) the authority to act on your behalf in relation to either: (a) all of your affairs or (b) only a specific issue(s). It can be for a fixed period of time or ongoing.