Sinuses are air-filled sacs (empty spaces) on either side of the nasal cavity that filter and clean the air breathed through the nose and lighten the bones of the skull. There are four paired ...

Sinus headaches are often confused with chronic or migraine headaches. WebMD tells you what to look for if you aren't sure what's causing your pain.

The ethmoid sinus (one of six sets of sinuses) is part of the paranasal sinus system and is located between the nose and eyes. It is very small at birth and becomes walnut-sized during puberty.

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People who suffer from chronic sinus infections know the warning signs when one might be coming on. Doctors at Baylor College of Medicine say that is a good time to try preventative measures, such as ...

It's that time of year again when you start seeing a whole lot more of sinus infections.You know the signs (even though you wish you didn't)—the headaches, the stuffy nose, and that awful ...

Sinus bradycardia. The average heart beats 60 to 100 times per minute. ... This test can map out the electrical impulses of your heart. Preventing Sick Sinus Syndrome.

On rare occasions, complications from a sinus infection can be life threatening, like what reportedly happened in Michigan to a 13-year-old boy.

Sinus tachycardia is when the sinus node in the heart sends electrical impulses faster than the normal rate. Learn more about causes and treatments here.

Nasal sinus disease, or sinusitis, affects approximately 33 million people and accounts for more than $5.8 billion in healthcare costs annually, according to a release from Monell.

Sinus drainage is a natural process, so a person cannot prevent it. The sinuses drain down the back of the throat and into the stomach. Each time a person swallows, they are swallowing some mucus.

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