·
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 Adam’s 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
