Endocarditis is an infection of the heart's inner lining. Find out who's at risk.

Lung cancer

Smoking increases your risk of lung cancer. Quit now and reduce your risk.


Runny nose

Runny nose: What's causing your sniffles?

Shortness of breath

Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.

Tests and diagnosis

Chest X-rays

Even with today's high-tech medical devices, the basic chest X-ray remains an important tool in diagnosing various conditions. Here's a look at how it works.

CT scan

A CT scan is an imaging test that uses X-rays to produce detailed images of the inside of your body.


Spirometry is a simple office test used to check how well your lungs are working.


X-rays are a form of radiation that can make images of your bones and internal organs.

May. 24, 2013