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Por lo general, la aterosclerosis no causa signos ni síntomas hasta que estrecha gravemente o bloquea por completo una arteria coronaria, carótida, periférica o renal. Muchas personas no saben que tienen la enfermedad hasta que sufren una situación de urgencia médica, como un ataque cardíaco o un accidente cerebrovascular.

La aterosclerosis es una enfermedad en la que se deposita placa dentro de las arterias. Las arterias son vasos sanguíneos que llevan sangre rica en oxígeno al corazón y a otras partes del cuerpo.

Bisphenol A (BPA) is a chemical produced in large quantities for use primarily in the production of polycarbonate plastics and epoxy resins.

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.

Doctors diagnose a stroke by reviewing your signs and symptoms, medical history, physical exam, and results from one or more tests: brain computed tomography (CT) scan, magnetic resonance imaging (MRI), CT or magnetic resonance arteriogram, carotid ultrasound, carotid angiography, electrocardiogram (EKG), echocardiography, and blood tests.

The signs and symptoms of a stroke vary. They often develop quickly and may include sudden weakness, paralysis, confusion, trouble speaking, changes in vision, trouble breathing, dizziness, loss of consciousness, and a sudden severe headache. After you’ve had a stroke, you may develop other complications such as blood clots, muscle weakness, problems swallowing, pneumonia, and loss of bladder control.

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.

Buildup of plaque and blood clots causing blockage of an artery that supplies oxygen-rich blood to the brain can cause an ischemic stroke, while sudden bleeding from causes such as high blood pressure can result in a hemorrhagic stroke.

The major types of stroke are ischemic (when an artery to the brain becomes blocked) and hemorrhagic (when an artery in the brain leaks blood or breaks open).

The chemicals in tobacco smoke harm your blood cells. Smoking can also damage the function of the heart and the structure and function of blood vessels, leading to atherosclerosis and its complications (coronary heart disease, heart attack, heart failure, arrhythmia, peripheral artery disease, and stroke).