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Breathing involves two phases: breathing in and breathing out. Your lungs deliver oxygen and remove carbon dioxide from your blood in a process called gas exchange. Gas exchange happens in the capillaries surrounding the alveoli, where the oxygen that is breathed in enters the circulatory system and carbon dioxide in the blood is released to the lungs and then breathed out. If you have problems breathing, gas exchange may be impaired, increasing the risk of serious health problems.

Angina is chest pain or discomfort that occurs if an area of your heart muscle does not get enough oxygen-rich blood. It is a common symptom of ischemic heart disease, which limits or cuts off blood flow to the heart.

Todas las personas mayores de 3 años deben visitar un profesional de la salud para medirse la presión arterial al menos una vez al año. El médico le tomara la presión arterial para ver si las lecturas de la presión arterial son constantemente altas. El médico le hablará sobre cambios en el estilo de vida para un corazón saludable para ayudarle a controlar la presión arterial o evitar la presión arterial alta.

Age, race, gender, certain medical conditions—high blood pressure, diabetes, brain aneurysms, and heart diseases—smoking, and family history can raise your risk for a stroke.

Pneumonia can be very serious and even life-threatening. Vaccines can help prevent some types of pneumonia. Good hygiene (washing your hands often), quitting smoking, and keeping your immune system strong by getting regular physical activity and eating healthy are other ways to lower your risk of getting pneumonia.

The first step toward heart health is understanding your risk of heart disease. Your risk depends on many factors, some of which are changeable and others that are not. Risk factors are conditions or habits that make a person more likely to develop a disease. These risk factors may be different for each person.

Mild cases of myocarditis and pericarditis may go away without treatment. To treat heart inflammation, your doctor may recommend medicines to fight the infection or control the inflammation, and possibly surgery for certain cases.

Your doctor may recommend a stent to provide support inside an artery that has become narrowed by plaque buildup from atherosclerosis, or for lung airways that have narrowed due to other medical conditions. Your doctor will discuss the risks and benefits of the procedure with you. Sometimes, a stenting procedure is not recommended or another procedure is recommended instead. Learn more about the use of stents in the following conditions.

The body’s muscles and nervous system help control your breathing. The lungs are like sponges; they cannot move on their own. Muscles in your chest and abdomen contract, or tighten, to create space in your lungs for air to flow in. The muscles then relax, causing the space in the chest to get smaller and squeeze the air back out. Your breathing usually does not require any thought, because it is controlled by the autonomic nervous system, also called the involuntary nervous system.

Dos de los principales factores de riesgo de enfermedad cardíaca son la presión arterial alta y el colesterol alto en sangre. Si cualquiera de estos números es alto, trabaje con su médico para que alcance un rango saludable.

Genetic testing may be performed to look for carriers, as well as to screen relatives of people who have cystic fibrosis.

The types of angina are stable, unstable, microvascular, and variant. The types vary based on their severity or cause.

CABG is a treatment but not a cure for ischemic heart disease. It is important to work with your doctor after CABG to help you stay healthy. This may include taking medicines prescribed by your doctor, making healthy lifestyle changes, getting regular medical checkups, and participating in cardiac rehabilitation.

Your genes, or other causes such as medical conditions or medicines, can cause bleeding disorders. Sometimes a cause may not be known. Any problem that affects the function or number of clotting factors or platelets can lead to a bleeding disorder.

Marfan syndrome is a genetic condition caused by a mutation, or change, in one of your genes, called the fibrillin-1 (FBN1) gene. The FBN1 gene makes fibrillin-1, which is a protein that forms elastic fibers within connective tissue. Fibrillin-1 also affects levels of another protein that helps control how you grow.