An average human scalp has 100,000 hairs.

It takes 17 muscles to smile and 43 to frown.

Babies are born with 300 bones, but by adulthood we have only 206 in our bodies.

Beards are the fastest growing hairs on the human body. If the average man never trimmed his beard, it would grow to nearly 30 feet long in his lifetime.

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.)

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

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

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

Fingernails grow faster than toenails.

By 70 years of age, an average person will have lost 105 pounds of skin.

Your eyesight is the sharpest in the middle of the day.

50,000 of the cells in your body will die and be replaced with new cells, all while you have been reading this sentence!

In one hour, your heart works hard enough to produce the equivalent energy to raise almost 1 ton of weight 1 yard off the ground.

Scientists have counted over 500 different liver functions.

In 1 square inch of skin there lies 4 yards of nerve fibers, 1300 nerve cells, 100 sweat glands, 3 million cells, and 3 yards of blood vessels.

The structural plan of a whale's, a dog's, a bird's and a man's 'arm' are exactly the same.

The world's first test-tube twins were born in June 1981.

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

Nerve impulses to and from the brain travel as fast as 170 miles per hour.

Your left lung is smaller than your right lung to make room for your heart.

The average human blinks his eyes 6,205,000 times each year.

The average human produces a quart of saliva a day or 10,000 gallons in a lifetime.

You burn 26 calories in a one-minute kiss.

The average human body contains enough: Sulphur 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, Phosphorus to make 2,200 matchheads, and enough Water to fill a ten-gallon tank.

Among the first known "dentists" of the world were the Etruscans. :In 700 BC they carved false teeth from the teeth of various mammals and produced partial bridgework good enough to eat with.

Ophthalmic surgery was one of the most advanced areas of medicine in the ancient world. Detailed descriptions of delicate cataract surgery with sophisticated needle syringes is contained in the medical writings of Celsus (A.D.14-37)

If you were freeze-dried, 10% of your body weight would be from the microorganisms on your body.

One human brain generates more electrical impulses in a single day than all of the world's telephones put together.

Your brain continues to send out electrical wave signals approximately 37 hours after death.

The human nose can remember 50,000 different smells.

The human eye can detect more than 10,000,000 different colors!

The eye muscle is the fastest reacting muscle of the whole body.

After you die, your body starts to dry out creating the illusion that your hair and nails are still growing after death.

Hair is made from the same substance as fingernails

Your ears and nose continue to grow throughout your entire life. :

When you eat meat and drink milk in the same meal, your body does not absorb any of the milk's calcium. It is best to have 2 hours between the milk and meat intake.

Only humans and horses have hymens.

The tooth is the only part of the human body that can't repair itself.

The only jointless bone in your body is the hyoid bone in your throat .

Human thighbones are stronger than concrete.

Wounds infested with maggots heal quickly and without spread of gangrene or other infection.

More germs are transferred shaking hands than kissing.

Tuberculosis is the biggest global killer of women.

Men who ride a bike for ten hours a week are four times as likely to be impotent as non-bike riders say US scientists.

The lightest baby to survive weighed a mere 283 grams.

More babies are born at night than in the day.

One third of all adults experience difficulty distinguishing left from right.

On average women say 7,000 words per day. Men manage just over 2000.

The human brain is 2% of the body's weight but uses a hungry 20% of its energy.

Women on the pill are 30% more likely to suffer from gum disease.

70% of the molecular structure in a tree is also human.

60-65 million years ago dolphins and humans shared a common ancestor - the Mesonycid.

It wasn't until 1628 that we realized that our hearts pumped blood right around our bodies.

88% of all humans are right handed.

A chest x-ray comprises 90,000 to 130,000 electron volts.

The average human brain consumes just 12 Watts of power - about one-tenth of what it takes to burn an ordinary light bulb.

The human retina is made up of about 120 million rod cells.

As women age, there is a general thinning of head hair. But many older women experience an increase in hair elsewhere: an estimated 40 percent of women over the age of 80 are likely to be troubled by excessive facial hair.

Smell and taste are both intimately related. More than 90 per cent of a meal's flavor - apart from the four basic tastes of sweet, sour, bitter and salty - is actually fragrance, which rises up from food during chewing and is forced across the olfactory epithelium through the nasopharynx at the back of the throat.

About one in every 2000 people automatically sees colors when hearing words, letters or numbers The vast majority (roughly 90 per cent) are female.

The brain reaches its maximum weight near age 20 and slowly loses about 10 percent of its weight over a lifetime.
Without its lining of mucus your stomach would digest itself.

There are 60,000 miles of blood vessels in the human body.

An individual blood cell takes about 60 seconds to make a complete circuit of the body.

Each person sheds 40lbs of skin in his or her lifetime.

Human thighbones are stronger than concrete.

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

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

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

A fetus acquires fingerprints at the age of three months.

A sneeze can exceed the speed of 100 mph.

Every person has a unique tongue print.

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

After spending hours working at a computer display, look at a blank piece of white paper. It will probably appear pink.

An average human drinks about 16,000 gallons of water in a lifetime.

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

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