Sinus rhythm is the term for the regular pattern of heartbeats driven by the heart’s natural pacemaker, the sinus node. Variations like sinus tachycardia (fast heart rate) and sinus bradycardia (slow ...

A sinus headache occurs when the sinus passages behind your eyes, nose, cheeks, and forehead are congested. This causes pressure and pain. You might experience sinus headaches on either or both sides ...

Congestion. Runny nose. Sore throat. These are cold symptoms we know all too well. But what happens when all the chicken soup and vitamin C in the world don’t seem to be doing the trick? It may be one ...