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Excessive alcohol use costs the country approximately $235 billion every year.

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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

The "Emu in the sky," a constellation defined by dark clouds rather than the stars. The "Emu in the sky," a constellation defined by dark clouds rather than the stars.
Spotted hyena cubs in Limpopo, South Africa. Note the well defined spots, which will fade with age Spotted hyena cubs in Limpopo, South Africa. Note the well defined spots, which will fade with age
Compression Occurs in vertebrae subjected to extreme stresses, as when one falls and lands on his or Compression Occurs in vertebrae subjected to extreme stresses, as when one falls and lands on his or
Oceanic Crust Has a Well-defined Internal Structure Oceanic Crust Has a Well-defined Internal Structure
At breakfast, a middle-class husband sits absorbed in the newspaper and the public affairs of the da At breakfast, a middle-class husband sits absorbed in the newspaper and the public affairs of the da
The coefficient of the restitution of an object is defined as the ratio of its outgoing to ... The coefficient of the restitution of an object is defined as the ratio of its outgoing to ...
Video: Atrophy

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