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Medicine Facts

What Is a Spinal Cord Injury?

Although the hard bones of the spinal column protect the soft tissues of the spinal cord, vertebrae can still be broken or dislocated in a variety of ways and cause traumatic injury to the spinal ... Continue reading

What's So Bad About Cholesterol?

Cholesterol has a worse reputation than it deserves. This waxy lipid (a kind of fat) is essential to good health. It builds the membranes that hold cells together. It's used in making certain hormones ... Continue reading

Cholesterol build-up diagram.

Ultrasound In Medicine

In medical testing, ultrasound equipment is used to produce a sonogram, or a picture of organs inside the body. Ultrasound scanners do not use X-rays. They use waves of such high frequency that they ... Continue reading

Ultrasound image of human fetus.

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.