Chronic obstructive pulmonary disease (COPD) affects approximately 29 million people in the U.S. and is the fourth leading ...

Chronic obstructive pulmonary disease is a condition caused by damage to the lungs that results in breathing difficulties.

The sinus of the heart is a structure in the right atrium where blood flows into the heart from the venae cavae.

The placement of a permanent pacemaker is the definitive treatment for sinus node dysfunction, but not everyone needs this.

— G.W.T.Dear G.W.T.: The sinus of the heart has nothing to do with your nose as you might guess; it's a structure in the ...

At age 76, I was diagnosed with sinus node dysfunction last year after several episodes of what I’d call being “spaced out” ...

Shortness of breath when walking short distances can occur suddenly or be a chronic condition. It should be evaluated, as it ...

This is a phenomenon that many people will likely experience at some point in their lives, and in most cases, it does not indicate a serious problem. For the majority of individuals, it is not a cause ...

At age 76, I was diagnosed with sinus node dysfunction last year after several episodes of what I’d call being “spaced out” (for lack of a better term). I couldn’t explain these instances to myself, ...

Hospitals across China are reporting a significant increase in respiratory cases among children, coinciding with the autumn-winter peak season for such illnesses. Recent national sentinel surveillance ...

Long-term exposure to air pollution can have devastating effects on your health, increasing the risk of several serious diseases. Experts warn that living in polluted cities can lead to respiratory ...

According to data from the Centers for Disease Control and Prevention (CDC), 10 causes account for roughly 1.7 million deaths ...