<p><strong>What Is Sinusitis?</strong></p>
<p>Sinusitis is an inflammation, usually due to infection, of one or more of the four sets of sinus cavities within each side of the facial skeleton. When irritated, the mucous membrane lining the sinus may swell and block the small drainage channels that permit mucus to flow into the nose. The buildup in pressure often results in headache, nasal congestion, drainage and facial pain. Acute sinusitis is a common disorder that often follows a cold or flu; chronic sinusitis refers to persistent or recurrent episodes that are generally milder than acute cases. Sinusitis often subsides on its own and responds well to home treatment. Rarely, infection may spread to the eyes or brain, possibly leading to vision loss, meningitis, or brain abscess.</p>
<p><strong>Who Gets Sinusitis? </strong></p>
<p>Approximately 15% of people in the United States suffe...
Since July of 2006, I have been experiencing very strange visual sensations (deja vu - seeing repetitive visions of experiences or thoughts regarding insignificant people that I have known in my life as well as physiological changes (a perceived drop in blood pressure, face paling, etc.) during numerous very short 20 to 30 second episodes. These episodes occur 4 to 5 times a year - usually seasonal and I experience about 10 -15 of them over the course of 2 days or so each time. A headache usually precedes them as does a change in my taste buds (things are tasteless or metallic tasting for a couple of days). After the episodes begin to wane (very few after a day or so), I experience a heightened sense in everything (an alertness, a heightened awareness of life). I went to see a neurologist a couple of years ago and he felt they were a type of migraine. I am experiencing them today (it's a weirdness I find difficult to explain but at times they are very fear provoking)...
<p><strong>What Is Hypertension? </strong></p>
<p>Hypertension (high blood pressure) is characterized by a persistent increase in the force that the blood exerts upon the walls of the arteries. It is normal for this force to increase with stress or physical exertion, but with hypertension, blood pressure is high even at rest.</p>
<p>Because blood pressure in the arteries rises and falls with each heartbeat, it is measured with two numbers: <strong>systolic</strong> (the top number in a reading) and <strong>diastolic</strong> (the bottom number). The systolic number reflects the force of blood against the arterial walls each time the heart contracts. Diastolic pressure refers to the pressure within the arteries as the heart relaxes and refills with blood (which explains why the diastolic number is always lower than the systolic measurement).</p>
<p>Blood pressure is measured in millimeters of mercury (abbr...
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