The strongest muscle in the body is the tongue.
The average healthy person can lose as much as one-third of his or her blood without fatal results.
The substance that human blood resembles most closely in terms of chemical composition in sea water.
The average human body holds enough: sulfur to kill all the fleas on an average dog, potassium to fire a toy cannon, carbon to make 900 pencils, fat to make 7 bars of soap, 10 gallons of water, and phosphorous to make 2,200 match heads.
The swine flu vaccine in 1976 caused more death and illness than the disease it was intended to prevent.
The average human eye can distinguish about 500 different shades of gray.
The temporal lobe is the area of the brain that allows humans to hear and understand people speaking.
The average human eyelash lives about 150 days.
The thumb is such a major player in the human body that it has a special section, separate from the area that controls the fingers, reserved for it in the brain.
The average human has about 10,000 taste buds — however, they're not all on the tongue. Some are under the tongue; some are on the inside of the cheeks; some are on the roof of the mouth. Some can even be found on the lips — these are especially sensitive to salt.
The thumbnail grows the slowest; the middle nail grows the fastest.
The average human heart beats about 100,000 times every 24 hours. In a 72-year lifetime, the heart beats more than 2.5 billion times.
The valves of the human heart are as thick as a single piece of tissue paper.
The average human liver is more than five times the weight of the human heart.
The average human scalp contains between 120,000 and 150,000 hairs.
The average life span of a fifth-century man in England was 30 years.
The weight of a fetus increases about 2.4 billion times in nine months.
The white part of your fingernail is called the lunula.
The word salmonella, referring to bacteria that enter a person's digestive tract in contaminated food and causing food poisoning, has nothing to do with fish. It was named after U.S. pathologist Daniel E. Salmon.
The average life span of an ancient Greek or Roman man was 36 years.
|© 2006 The Mine of Useless Information|