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 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.

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.

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.

sinus problems, frontal headaches: Another point, GV23, may also help with general headaches. It is located in the center of the forehead, 1 cun behind the hairline.