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Medicine Facts

Your Friend, the Fat Cell

A healthy, adult human body contains about 35 billion fat cells. Each contains about 0.5 micrograms of fat. Stored fat is essential to good health. Fat is the body's principal energy reserve. It is ... Continue reading

Mature fat cells filled with fat.

Why Is Blood Pressure Two Numbers?

Blood pressure might better be called heart pressure, for the heart's pumping action creates it. To measure blood pressure, health workers determine how hard the blood is pushing at two different ... Continue reading

Blood pressure cuff measures systolic and diastolic pressure.

Is Heartburn a Heart Burn?

Heartburn is a bad name for a complaint that has nothing to do with the heart. TV ads call it acid indigestion. It's a burning sensation that begins under the breastbone and moves up into the throat. ... Continue reading

Upper digestive tract.

Fighting Viruses

Viral diseases can be very difficult to treat because viruses live inside the body's cells where they are protected from medicines in the blood stream. Researchers developed the first antiviral drug ... Continue reading

Electron micrograph of Ebola virus.