Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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The longest a person has survived after a heart transplant is 24 years.
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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
Posterior view of the Heart, outlining the major arteries
Position of the Heart in the Thoracic Cavity
Location of the heart within the mediastinum of the thoracic cavity.
The mortality rate in the United States increases with age and is lower for women than men at every ...