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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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There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

A stallion with a proven competition record is one criterion for being a suitable sire. A stallion with a proven competition record is one criterion for being a suitable sire.
The Phanerozoic Oxygen Isotope Record of Seawater The Phanerozoic Oxygen Isotope Record of Seawater
Harlem’s Promise Academy has a record of graduating and sending to college more than 90 percent ... Harlem’s Promise Academy has a record of graduating and sending to college more than 90 percent ...
Medical assistants can quickly pull up a patient record when a phone call is received. Medical assistants can quickly pull up a patient record when a phone call is received.
Radioactive protection services record book and two badge-style dosimeters. Radioactive protection services record book and two badge-style dosimeters.
A piece of glass has a thin film of gasoline floating on it. A beam of light is shining ... A piece of glass has a thin film of gasoline floating on it. A beam of light is shining ...
Video: Mycobacterium tuberculosis: Drug Resistance and Natural Selection

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