The heart is a vital organ that pumps blood throughout the body. It is located in the chest, between the lungs, and is roughly the size of a fist. The heart is made up of four chambers, each of which has a specific function in the circulation of blood.
The heart is responsible for pumping oxygen-rich blood to the body's tissues and organs and returning oxygen-poor blood back to the lungs to be replenished with oxygen. The sinoatrial node, which functions as the heart's natural pacemaker, regulates the heart's rhythmic contractions.
High blood pressure, high cholesterol, and smoking are just a few of the factors that can contribute to heart disease, which is a leading cause of death worldwide. Maintaining a healthy lifestyle that includes regular exercise, a balanced diet, and avoiding smoking can help reduce the risk of heart disease.
Heart
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