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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.

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.

Los signos y síntomas frecuentes de la apnea del sueño son los ronquidos o los jadeos durante el sueño, la respiración reducida o ausente (denominada "episodio de apnea") y la somnolencia. La apnea del sueño sin diagnosticar o tratar impide el sueño reparador y puede causar complicaciones que afecten muchas partes del cuerpo.

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.

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.

Having a stent placed is a minimally invasive procedure, meaning it is not a major surgery. Stents for coronary arteries and carotid arteries are placed in similar ways. A stent graft is placed to treat an aneurysm in a procedure called aortic aneurysm repair. Airway stents are placed in a procedure that helps open airways in the lung. For most stents, you will be given medicine to make you sleep during the procedure. The stent procedure may be planned ahead of time or it may be performed in an emergency situation.

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.

Ventricular fibrillation, a type of arrhythmia, causes most sudden cardiac arrests. Other problems with the heart's electrical system, including diseases or conditions that can cause the electrical problems—such as coronary heart disease, physical stress, certain inherited disorders, and structural changes in the heart—also can lead to sudden cardiac arrest.

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.