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.
If a power of attorney is durable, it remains valid and in effect even if you become incapacitated and unable to make decisions for yourself. If a power of attorney document does not explicitly say that the power is durable, it ends if you become incapacitated. But wait. There is more. There are two kinds of durable powers of attorney: a durable power of attorney for finances lets you name someone to manage your financial affairs if you become incapacitated, and a durable power of attorney for health care allows someone to make medical decisions for you if you are no longer able to speak for yourself.