2022年3月24日 · 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 …

2025年6月25日 · Oxygen-poor blood from the body enters your heart through two large veins called the superior and inferior vena cava. The blood enters the heart's right atrium and is pumped to your right …

2022年3月24日 · 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 …

2025年6月25日 · Your heartbeat is the contraction of your heart to pump blood to your lungs and the rest of your body. Your heart's electrical system determines how fast your heart beats.

2024年8月13日 · Symptoms Heart disease symptoms depend on the type of heart disease. Symptoms of heart disease in the blood vessels Coronary artery disease is a common heart condition that …

2022年3月24日 · A heart attack is a life-threatening medical emergency that requires immediate treatment. Learn about prevention, symptoms, causes, and treatments for heart attacks.

2025年1月15日 · Join The Heart Truth ® for Taking Care of #OurHearts Together: Building Heart-Healthy Communities. A panel of experts from the National Heart, Lung, and Blood Institute and …

2022年3月24日 · 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.

Heart health is the overall well-being of your heart. Heart-healthy living involves understanding your risk factors, making healthy choices, and taking steps to reduce your chances of getting heart disease. …

2024年12月27日 · Coronary heart disease is a type of heart disease that occurs when the arteries of the heart cannot deliver enough oxygen -rich blood to the heart muscle due to narrowing from the …