Human Body

In an average healthy adult, the volume of blood is one-eleventh of the body weight, or between 5 and 6 quarts. (The amount of oil used in the average V8 engine)

In ten years, the average man shaves off a pound of whiskers.

A cough releases an explosive charge of air that moves at speeds up to 60 mph.

A fingernail or toenail takes about 6 months to grow from base to tip.

A human being loses an average of 40 to 100 strands of hair a day.

A person will die from total lack of sleep sooner than from starvation. Death will occur about 10 days without sleep, while starvation takes a few weeks.

A sneeze can exceed the speed of 100 mph.

According to German researchers, the risk of heart attack is higher on Monday than any other day of the week.

According to the Kinsey Institute, the biggest erect penis on record measures 13 inches. The smallest tops off at 1 3/4 inches.

An average human scalp has 100,000 hairs.

Blondes have more hair than dark-haired people.

By age sixty, most people have lost half of their taste buds.

By the time you turn 70, your heart will have beat some two-and-a-half billion times (figuring on an average of 70 beats per minute.)

Only one person in two billion will live to be 116 or older.

Each square inch of human skin consists of twenty feet of blood vessels.

Every human spent about half an hour as a single cell.

Babies are born without knee caps. They don't appear until the child reaches 2-6 years of age.

Every person has a unique tongue print.

Every square inch of the human body has an average of 32 million bacteria on it.

Every time you lick a stamp, you're consuming 1/10 of a calorie.

Fingernails grow faster than toenails.

Our eyes are always the same size from birth, but our nose and ears never stop growing.

Humans shed about 600,000 particles of skin every hour - about 1.5 pounds a year. By 70 years of age, an average person will have lost 105 pounds of skin.

Humans shed and re-grow outer skin cells about every 27 days - almost 1,000 new skins in a lifetime.

If it were removed from the body, the small intestine would stretch to a length of 22 feet.

If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.

If you go blind in one eye, you'll only lose about one-fifth of your vision (but all your depth perception.)

In a lifetime the average US resident eats more than 50 tons of food and drinks more than 13,000 gallons of liquid.

It takes 17 muscles to smile --- 43 to frown.

Jaw muscles can provide about 200 pounds of force to bring the back teeth together for chewing.

Most men have erections every hour to hour and a half during sleep.

The "funny bone" is not a bone, it is a nerve.

The ashes of the average cremated person weigh nine pounds.

The average duration of sexual intercourse for humans is 2 minutes.

The average human body contains enough: iron to make a 3 inch nail, sulfur to kill all fleas on an average dog, carbon to make 900 pencils, potassium to fire a toy cannon, fat to make 7 bars of soap, phosphorous to make 2,200 match heads, and water to fill a ten-gallon tank.

The average human produces 25,000 quarts of spit in a lifetime, enough to fill two swimming pools.

The average person releases nearly a pint of intestinal gas by flatulence every day. Most is due to swallowed air. The rest is from fermentation of undigested food.

The feet account for one quarter of all the human bodies bones -- That's 52 bones in the feet alone.

The average person takes 8,000 to 10,000 steps a day. Those cover several miles, and they all add up to about 115,000 miles in a lifetime -- equal to circling the globe nearly five times.

When a person weighing 150 pounds jogs three miles, the cumulative impact on each foot is greater than 150 tons.

A pair of feet have 250,000 sweat glands and can produce as much as eight ounces of sweat in one day.

The human body has enough fat to produce 7 bars of soap.

The human body has over 600 muscles, 40% of the body's weight.

The human brain is about 85% water.

The largest cell in the human body is the female reproductive cell, the ovum. The smallest is the male sperm.

The largest human organ is the skin, with a surface area of about 25 square feet.

The left lung is smaller than the right lung to make room for the heart.

The most common blood type in the world is Type O. The rarest, Type A-H, has been found in less than a dozen people since the type was discovered.

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

There are 45 miles of nerves in the skin of a human being.

Three-hundred-million cells die in the human body every minute.

Women burn fat more slowly than men, by a rate of about 50 calories a day.