The average human brain has about 100 billion nerve cells.
Nerve impulses to and from the brain travel as fast as 170 miles (274 km) per hour.
The thyroid cartilage is more commonly known as the adams apple.
The only jointless bone in your body is the hyoid bone in your throat
It’s impossible to sneeze with your eyes open.
Your stomach needs to produce a new layer of mucus every two weeks or it would digest itself.
It takes the interaction of 72 different muscles to produce human speech.
The average life of a taste bud is 10 days.
The average cough comes out of your mouth at 60 miles (96.5 km) per hour.
Relative to size, the strongest muscle in the body is the tongue.
Human thigh bones are stronger than concrete.
When you sneeze, all your bodily functions stop even your heart.
Babies are born without knee caps. They don’t appear until the child reaches 2-6 years of age.
Children grow faster in the springtime.
It takes the stomach an hour to break down cow milk.
Women blink nearly twice as much as men.
Blondes have more hair than dark-haired people do.
There are 10 human body parts that are only 3 letters long (eye hip arm leg ear toe jaw rib lip gum).
If you go blind in one eye you only lose about one fifth of your vision but all your sense of depth.
The average human head weighs about 8 pounds.
Our eyes are always the same size from birth, but our nose and ears never stop growing.
In the average lifetime, a person will walk the equivalent of 5 times around the equator.
An average human scalp has 100,000 hairs.
The length of the finger dictates how fast the fingernail grows. Therefore, the nail on your middle finger grows the fastest, and on average, your toenails grow twice as slow as your fingernails.
The average human blinks their eyes 6,205,000 times each year.
The entire length of all the eyelashes shed by a human in their life is over 98 feet (30 m).
Your skull is made up of 29 different bones.
Your ears and nose continue to grow throughout your entire life.
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.
The average surface of the human intestine is 656 square feet (200 m).
A healthy adult can draw in about 200 to 300 cubic inches (3.3 to 4.9 liters) of air at a single breath, but at rest only about 5% of this volume is used.
The surface of the human skin is 6.5 square feet (2m).
15 million blood cells are destroyed in the human body every second.
The pancreas produces Insulin.
The most sensitive cluster of nerves is at the base of the spine.
The human body is comprised of 80% water.
The average human will shed 40 pounds of skin in a lifetime.
Every year about 98% of the atoms in your body are replaced.
The human heart creates enough pressure to squirt blood 30 feet (9 m).
You were born with 300 bones. When you get to be an adult, you have 206.
Human thighbones are stronger than concrete.
Every human spent about half an hour as a single cell.
There are 45 miles (72 km) of nerves in the skin of a human being.
The average human heart will beat 3,000 million times in its lifetime and pump 48 million gallons of blood.
Each square inch (2.5 cm) of human skin consists of 20 feet (6 m) of blood vessels.
During a 24-hour period, the average human will breathe 23,040 times.
Human blood travels 60,000 miles (96,540 km) per day on its journey through the body.
The stomach’s digestive acids are strong enough to dissolve zinc. Fortunately for us, the cells in the stomach lining renew so quickly that the acids don’t have time to dissolve it.
The lungs contain over 300,000 million capillaries (tiny blood vessels). If they were laid end to end, they would stretch 2400km (1500 miles).
A mans testicles manufacture 10 million new sperm cells each day – enough that he could repopulate the entire planet in only 6 months!
Human bone is as strong as granite in supporting weight. A block of bone the size of a matchbox can support 9 tonnes – that is four times as much as concrete can support.
Each finger and toenail takes six months to grow from base to tip.
The largest organ in the body is the skin. In an adult man it covers about 1.9m2 (20sq ft). The skin constantly flakes away – in a lifetime each person sheds around 18kg (40 lb) of skin.
When you sleep, you grow by about 8mm (0.3in). The next day you shrink back to your former height. The reason is that your cartilage discs are squeezed like sponges by the force of gravity when you stand or sit.
The average person in the West eats 50 tonnes of food and drinks 50,000 liters (11,000 gallons) of liquid during his life.
Each kidney contains 1 million individual filters. They filter an average of around 1.3 liters (2.2 pints) of blood per minute, and expel up to 1.4 liters (2.5 pints) a day of urine.
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
A single human blood cell takes only 60 seconds to make a complete circuit of the body.
A foreskin, the size of a postage stamp, from circumcised babies take only 21 days to grow skin that can cover three (3) basketball courts. Amazing isn’t it. Thanks to science. The laboratory-grown skin is used in treating burn patients.
The eyes receive approximately 90 percent of all our information, making us basically visual creatures.
The female ovaries contain nearly half-a-million egg cells, yet only 400 or so will ever get the opportunity to create a new life.