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Heart disease, also known as cardiovascular disease, refers to a wide array of conditions adversely affecting the heart. Most common among these are coronary heart disease, atherosclerosis, heart attack, heart failure, and others. Heart disease is today the leading cause of death for men and women in the United States and the world. New advances in research include the differences in heart disease among men, women, and people of diverse ethnicities, as well as new findings in stem cell treatment for heart disease.

The heart is a vital organ for the human body. Encased in a sac called the pericardium, the organ has four chambers: two upper chambers known as the atria and two lower chambers known as ventricles. The atria and the ventricles are connected ...

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