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Low-dose CT scans for cancer screening can reduce the risk of dying from lung cancer for those at high risk.

Functional dystonia is a condition that causes muscle spasms (contractions) you can’t control. Dystonia causes clenching, bending, or twisting or limbs or joints.

Resuscitation refers to the methods used to try to restart the heart and lungs if they stop working. If you have a serious illness, your healthcare provider will likely talk to you and your loved ones about resuscitation and other treatments you may need in the future. Read on to learn more about resuscitation and what you need to know when deciding about this treatment.

Sometimes problems with the heart's electrical signals lead to a fast heart rhythm. Too many signals may make the heart beat very fast (tachycardia). Or signals may be sent so rapidly and irregularly that the heart muscle sometimes quivers and doesn't beat at all (fibrillation).

Angiography is a special type of x-ray that allows your coronary arteries to be viewed and recorded on film. Your doctor can see if the blood vessels to your heart are clogged.

A transthoracic echocardiogram (echo) is an imaging test. It helps your doctor assess your heart. Here's how it works.

An EPS closely monitors your heart rhythm. EPS can help find out exactly what your rhythm problem is and what can be done to control it. A specially trained doctor (electrophysiologist) does the procedure in an EPS lab.

A helpful look at medicines to control heart failure, and how they work.

If you have cardiomyopathy, you have a problem with the muscle tissue that makes up your heart. Cardiomyopathy means "heart muscle disease." Your heart may not be pumping as well as it should.