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A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

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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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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Blood Pressure Cuff Blood Pressure Cuff
Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp
Sickled and normal red blood cells. Sickled and normal red blood cells.
The oil pressure switch is connected to a warning lamp that alerts the driver of low oil pressure. The oil pressure switch is connected to a warning lamp that alerts the driver of low oil pressure.
Checking the fuel pressure using a fuelpressure gauge connected to the Schrader valve. Checking the fuel pressure using a fuelpressure gauge connected to the Schrader valve.
Blood vessels: (A) normal artery; (B) constriction; (C) arteriosclerosis and atherosclerosis. Blood vessels: (A) normal artery; (B) constriction; (C) arteriosclerosis and atherosclerosis.
Video: Subunits of DNA And Semi Conservative Replication

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