Since your friend had heart problems, she should not have lived alone.
is an umbrella term for a variety for different diseases affecting the heart. As of 2007, it is the leading cause of death in the United States, England, Canada and Wales, killing one person every 34 seconds in the United States alone
The most common cause of heart disease is a narrowing of or blockage in the coronary arteries supplying blood to the heart muscle (coronary artery
disease). Some heart diseases are present at birth (congenital heart disease).
Other causes include:
* Abnormal heart rhythm
* Abnormal heart valve function
* High blood pressure
* Weakening of the heart's pumping ability, often caused by infection or toxins (cardiomyopathy