Pain travels at a speed of 350 feet per second.
The human foot has 26 bones, 33 joints, 107 ligaments, and 19 muscles and tendons. The 52 bones in your feet make up about 25 percent of all the bones in your body.
Parts of the human anatomy have evolved into common expressions in American speech. A few examples include: A good head on his shoulders; the shoe's on the other foot; a heart of gold; chip on his shoulder; a nose for crime; turn the other cheek; a pain in the neck; rub someone's nose in it; a price on his head; apple of his eye; snap his head off; put your foot down; shoulder to the wheel; you're pulling my leg; stick your neck out; twist around your little finger; heart-to-heart talk; keep your head above water. The list goes on and on.
The human hand contains an average of 1,300 nerve endings per square inch.
Passive immunization requires the injection of blood from an exposed person to provide the recipient with immediate, short-lived protection from a germ.
The human hand has 27 bones and 35 muscles.
People dream an average of five times a night, and each subsequent dream is longer than the one preceding it. The first dream of the evening is about 10 minutes long, and the last dream is about 45 minutes.
The human heart beats about 70 times per minute, the shrew's 600 times a minute, a hummingbird's heart can beat up to 1,300 times per minute. By comparison, the blue whale, the largest mammal in the world has a heart that weighs 1,300 pounds and beats only about 10 times per minute.
People living in high altitudes have more red blood cells than people living at sea level.
The human heart creates enough pressure when it pumps out to the body to squirt blood 30 feet.
People lose more than hair as they grow old. By the age of 70, half of your taste buds will be gone.
The human heart grows by enlargement of cells, not cell multiplication. A baby's heart is one-sixteenth the size of an adult's, but contains the same number of cells.
People who attend church, synagogue, or other religious services once a week live to an average age of 82, a Denver Rocky Mountain News report has claimed. Non-churchgoers live to an average age of 75, or seven years less.
Per Longevity magazine, a number of plastic surgeons now require their prospective patients to undergo a series of psychological tests to determine if they will become emotionally unstable, excessively anxious, or threatening to the doctor following their cosmetic surgery.
Per 1999 medical data, an alarming 2 million people are hospitalized and as many as 140,000 die each year from side effects or reactions to prescription drugs.
The human heart is no bigger than a fist and yet is wrapped in so much muscle that it can continue pumping, even if a third of its muscle mass is destroyed.
The human heart pumps 5 quarts of blood per minute to every cell in the body. Over a 70-year life, this would equal 220 million quarts of blood.
The human heart rests between beats. In an average lifetime of 70 years, the total resting time is estimated to be about 40 years.
The human sense of smell is so keen that it can detect the odors of certain substances even when they are diluted to 1 part to 30 billion.
The human spinal cord is an average of 17 inches long and up to 0.75-inch thick. The spinal cord is also as flexible as a rubber hose.
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