The heart is an organ about the size of your fist that pumps blood through your body. It is made up of multiple layers of tissue. Your heart is at the center of your circulatory system. This system is a network of blood vessels, such as arteries, veins, and capillaries, that carries blood to and from all areas of your body. Your blood carries the oxygen and nutrients that your organs need to ...
Heart failure is a condition that occurs when your heart can't pump enough blood for your body's needs. Learn about the symptoms, causes, risk factors, and treatments for heart failure.
What you eat makes a difference to your heart. A heart-healthy eating plan emphasizes vegetables, fruits, and whole grains, includes fat-free or low-fat dairy products, and limits foods high in saturated fat and sugar-sweetened beverages and sweets. Use the guide below to determine how much you should eat from each food group.
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Your heart is in the center of your chest, near your lungs. It has four hollow chambers surrounded by muscle and other heart tissue. The chambers are separated by heart valves, which make sure that the blood keeps flowing in the right direction. Read more about heart valves and how they help blood flow through the heart. Anatomy of the interior of the heart. This image shows the four chambers ...