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People Trivia

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The “spring up, fall out” phenomenon says children grow twice as fast in the spring as they do in the fall, while they gain more weight in the fall.

In all of history, the most destructive disease is malaria. More than 1.5 million people die from malaria every year.

The ability to firmly grip with your hand comes from the muscles in the forearm. The muscles pull on tendons in the hand, bending the fingers.

In ancient Rome, gold salves were used for the treatment of skin ulcers. Today, gold leaf plays an important role in the treatment of chronic ulcers.

In dentistry, a “mulberry molar” is a tooth with more than the usual four cusps.

In medieval Europe, alchemists mixed powdered gold into drinks to "comfort sore limbs," one of the earliest references to arthritis.

The skeleton of an average 160 pound body weighs about 29 pounds.

The skin is only about as deep as the tip of a ball-point pen. First-degree burns affect only the very top layers of the skin; second-degree burns, midway through the skin's thickness. Third-degree burns penetrate and damage the entire thickness of the skin.

The skin is the body's largest organ. It helps keep the body at the ideal temperature by insulating it in the cold and allowing heat to escape when it is warm.

The adjective "metopic" pertains to the forehead.

The skin of the armpits can harbor up to 516,000 bacteria per square inch, while drier areas, such as the forearm, have only about 13,000 bacteria per square inch.

The African bushman lives in a quiet, remote environment and has no measurable hearing loss at age 60.

The smooth muscles of the human body operate involuntarily and are located inside organs, such as the stomach and intestines.

The Alzheimer's Association estimates four million Americans have the disease and 100,000 die from it each year.

The soft mass of the adult brain is motionless. Though it consumes up to 25 percent of the blood's oxygen supply, it does not grow, divide, or contract.

The average adult eyeball weighs about one ounce.

The sound heard by a listener when holding a seashell to his ear does NOT come from the shell itself. It is the echo of the blood pulsing in the listener's own ear.

The average adult has between 40 and 50 billion fat cells.

The sound of a snore (up to 69 decibels) can be almost as loud as the noise of a pneumatic drill (70–90 decibels).

The average adult stands 0.4 inch (1 cm) taller in the morning than in the evening, because the cartilage in the spine compresses during the day.

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