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Angina happens when your heart muscle does not get enough oxygen-rich blood. Medical conditions, particularly ischemic heart disease, or lifestyle habits can cause angina. To understand the causes of angina, it helps to understand how the heart works.

Typically doctors screen for atrial fibrillation only when you have symptoms. However, your doctor may check for signs of atrial fibrillation as part of your regular medical care. Screening tests include checking your pulse or recording your heart’s electrical activity.

Many factors play a role in preparing your body to fall asleep and wake up. Your body has several internal clocks, called circadian clocks. These typically follow a 24-hour repeating rhythm, called the circadian rhythm. This rhythm affects every cell, tissue, and organ in your body and how they work.

The respiratory system helps you breathe. The main parts of the respiratory system are the lungs, the airways, and the muscles that enable breathing. The circulatory system, which is made up of the heart, veins, arteries, and capillaries, brings blood to and from the lungs and delivers nutrients and oxygen to tissues of the body while removing carbon dioxide and waste products. Other body systems that work with the respiratory system include the nervous system, lymph system, and immune system.

How your pleural disorder is treated depends on what type of pleural disorder you have and how severe it is. Some pleural disorders go away without treatment. Others will require a procedure to remove air, fluid, or other material from the pleural space. The goal of treatment is to relieve symptoms and treat the underlying condition.

Treatment for bleeding disorders will vary depending on the disorder and may include medicines and factor replacement therapy. Your treatment may be every day to prevent bleeding episodes, or as needed when you plan for surgery or have an accident. You may not need treatment if your bleeding disorder is mild.

El sueño juega un papel vital en la buena salud y el bienestar a lo largo de su vida. La forma en que se siente mientras está despierto depende en parte de lo que sucede mientras duerme. Durante el sueño, su cuerpo está trabajando para mantener una función cerebral saludable y conservar su salud física. En niños y adolescentes, el sueño también ayuda a apoyar el crecimiento y el desarrollo. Con el tiempo, dormir de manera inadecuada puede aumentar su riesgo de tener problemas de salud crónicos. También puede afectar qué tan bien piensa, reacciona, trabaja, aprende y se lleva bien con los demás. Aprenda cómo el sueño afecta el corazón y el sistema circulatorio, el metabolismo, el sistema respiratorio, el sistema inmunitario y cuánto sueño es suficiente.

Risk factors for overweight and obesity include having unhealthy lifestyle habits such as lack of physical activity, unhealthy eating behaviors, not getting enough sleep, having high amounts of stress; being a certain age; living in unhealthy environments, having a family history; being a certain race or ethnicity; or being a certain sex.

COPD, or chronic obstructive pulmonary disease, is a progressive disease that makes it hard to breathe. In the United States, the term COPD includes two main conditions—emphysema and chronic bronchitis.

If you’ve already had sudden cardiac arrest, an implantable cardioverter defibrillator reduces the chances of dying from a second sudden cardiac arrest. If you have not yet had sudden cardiac arrest but have severe coronary heart disease, your doctor may prescribe a beta blocker or statin. Following a healthy lifestyle can help you lower your risk for sudden cardiac arrest, coronary heart disease, and other heart problems.