How the Heart Works - What the Heart Looks Like | NHLBI, NIH Heart inflammation is inflammation in one or more of the layers of tissue in the heart, including the pericardium, myocardium, or endocardium This can lead to serious complications, including heart failure, cardiogenic shock, or irregular heart rhythm
Sepsis - Symptoms causes - Mayo Clinic Sepsis is a serious condition in which the body responds improperly to an infection The infection-fighting processes turn on the body, causing the organs to work poorly Sepsis may progress to septic shock This is a dramatic drop in blood pressure that can damage the lungs, kidneys, liver and other organs When the damage is severe, it can lead to death Early treatment of sepsis improves
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
Atrial fibrillation - Symptoms and causes - Mayo Clinic Atrial fibrillation (AFib) is a heart rhythm disorder In a typical heart, a group of cells called the sinus node sends electrical signals that start each heartbeat The signals go across the upper heart chambers to the AV node, where they usually slow down Then the signals go to the lower heart chambers, causing them to squeeze and pump out blood But in AFib, the signals in the upper
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
Blood pressure chart: What your reading means - Mayo Clinic The American College of Cardiology and the American Heart Association divide blood pressure into four general categories Ideal blood pressure is categorized as normal Increased blood pressure may be categorized as elevated, stage 1 or stage 2 depending on the specific numbers
Coronary Heart Disease - Risk Factors | NHLBI, NIH Coronary heart disease is the leading cause of death for both men and women in the United States Men’s risk for coronary heart disease starts to increase significantly around age 45 Before menopause, women have a lower risk of coronary heart disease than men Around age 55, the risk for women increases more rapidly
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