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  • How the Heart Works - What the Heart Looks Like | NHLBI, NIH
    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
  • Heart disease - Symptoms and causes - Mayo Clinic
    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 affects the major blood vessels that supply the heart muscle A buildup of fats, cholesterol and other substances in and on the artery walls usually causes coronary artery
  • Heart attack - Symptoms causes - Mayo Clinic
    A heart attack occurs when an artery that sends blood and oxygen to the heart is blocked Fatty, cholesterol-containing deposits build up over time, forming plaques in the heart's arteries If a plaque ruptures, a blood clot can form The clot can block arteries, causing a heart attack During a heart attack, a lack of blood flow causes the tissue in the heart muscle to die
  • How the Heart Works - How the Heart Beats | NHLBI, NIH
    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
  • How the Heart Works - NHLBI, NIH
    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
  • Strategies to prevent heart disease
    Heart disease is a leading cause of death You can't change some risk factors for it, such as family history, sex assigned at birth or age But you can take plenty of other steps to lower your risk of heart disease One of the best things you can do for your heart is to stop smoking or using
  • What Is Coronary Heart Disease? - NHLBI, NIH
    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 buildup of fatty deposits called plaque It is also sometimes called coronary artery disease or ischemic heart disease
  • Heart disease in women: Understand symptoms and risk factors
    Heart disease is the most common cause of death for both women and men in the United States But some heart disease symptoms in women can differ from those in men Knowing the symptoms of a heart attack and heart disease may help save a life
  • Heart rate: Whats normal? - Mayo Clinic
    A normal resting heart rate for adults ranges from 60 to 100 beats per minute A heart rate above or below that may signal a health condition
  • What Is a Heart Attack? - NHLBI, NIH
    A heart attack is a life-threatening medical emergency that requires immediate treatment Learn about prevention, symptoms, causes, and treatments for heart attacks





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