From Diane
WHO
COULD BELIEVE IN EVOLUTION AFTER READING THIS???
EVERY ONE OF US IS A MIRACLE
TO BEHOLD!
The
Human Body is a treasure trove of mysteries, one that still confounds doctors
and scientists about all the details of its working. It's not an overstatement
to say that every part of your body is a miracle. Here are fifty facts about
your body, some of which will leave you stunned.
1. It's possible for your body to
survive without a surprisingly large fraction of its internal organs. Even if
you lose your stomach, your spleen, 75% of your liver, 80% of your intestines, one kidney, one lung, and
virtually every organ from your pelvic and groin area, you wouldn't be very
healthy, but you would live.
2. During your lifetime, you will
produce enough saliva to fill two swimming pools. Actually, saliva is more
important than you realize. If your saliva cannot dissolve something, you
cannot taste it.
3.
The largest cell in the human body is the female egg, and the smallest
is the male sperm. The egg is actually the only cell in the body that is
visible by the naked eye.
4.. The strongest muscle in the
human body is the tongue and the hardest bone is the jawbone.
5. Human feet have 52 bones,
accounting for one quarter of all the human body's bones.
6. Feet have 500,000 sweat glands
and can produce more than a pint of sweat a day.
7. The acid in your stomach is
strong enough to dissolve razor blades. The reason it doesn't eat away at your stomach is that the cells of your
stomach wall renew themselves so frequently that you get a new stomach lining every
three to four days.
8. The human lungs contain
approximately 2,400 kilometers (1,500 miles) of airways and 300 to 500 million
hollow cavities, having a total surface area of about 70 square meters, roughly
the same area as one side of a
tennis court. Furthermore, if all of the capillaries that surround the lung
cavities were unwound and laid end to end, they would extend for about 992
kilometers. Also, your left lung is
smaller than your right lung to make room for your heart.
9. Sneezes regularly exceed 100
mph, while coughs clock in at about 60 mph.
10. Your body gives off enough heat
in 30 minutes to bring half a gallon of water to a boil.
11. Your body has enough iron in it
to make a nail 3 inches long.
12. Earwax production is necessary
for good ear health. It protects the delicate inner ear from bacteria, fungus,
dirt and even insects. It also cleans and lubricates the ear canal.
13. Everyone has a unique smell,
except for identical twins, who smell the same.
14. Your teeth start growing 6
months before you are born. This is why one out of every 2,000 newborn infants
has a tooth when they are born
15.
A baby's head is one-quarter of its total length, but by the age of 25
will only be one-eighth of its total length. This is because people's heads
grow at a much slower rate than the rest of their bodies.
16. Babies are born with 300 bones,
but by adulthood the number is reduced to 206. Some of the bones, like skull
bones, get fused into each other, bringing down the total number.
17. It's not possible to tickle
yourself. This is because when you attempt to tickle yourself you are totally
aware of the exact time and manner in which the tickling will occur, unlike
when someone else tickles you.
18. Less than one third of the
human race has 20-20 vision. This means that two out of three people cannot see
perfectly.
19. Your nose can remember 50,000
different scents. But if you are a woman, you are a better "smeller"
than men, and will remain a better "smeller" throughout your life.
20. The human body is estimated to
have 60,000 miles of blood vessels.
21. The three things pregnant women
dream most of during their first trimester are frogs, worms and potted
plants. Scientists have no idea why this
is so, but attribute it to the growing imbalance of hormones in the body during
pregnancy.
22. The life span of a human hair
is 3 to 7 years on average. Every day the average person loses 60-100 strands
of hair. But don't worry; you must lose over 50% of your scalp hairs before it
is apparent to anyone.
23. The human brain cell can hold 5
times as much information as an encyclopedia. Your brain uses 20% of the oxygen
that enters your bloodstream, and is itself made up of 80% water. Though it interprets pain signals from the
rest of the body, the brain itself cannot feel pain.
24. The tooth is the only part of
the human body that can't repair itself.
25. Your eyes are always the same
size from birth but your nose and ears never stop growing.
26. By 60 years of age, 60% of men
and 40% of women will snore.
27. We are about 1 cm taller in the
morning than in the evening, because during normal activities during the day,
the cartilage in our knees and other areas slowly compress.
28. The brain operates on the same
amount of power as 10-watt light bulb, even while you are sleeping. In fact,
the brain is much more active at night than during the day.
29. Nerve impulses to and from the
brain travel as fast as 170 miles per hour. Neurons continue to grow throughout
human life. Information travels at different speeds within different types of
neurons.
30. It is a fact that people who
dream more often and more vividly, on an average have a higher intelligence
quotient.
31. The fastest growing nail is on
the middle finger.
32. Facial hair grows faster than
any other hair on the body. This is true for men as well as women.
33. There are as many hairs per
square inch on your body as a chimpanzee.
34. A human fetus acquires
fingerprints at the age of three months.
35. By the age of 60, most people
will have lost about half their taste buds.
36. About 32 million bacteria call
every inch of your skin home. But don't worry, a majority of these are harmless
or even helpful bacteria.
37. The colder the room you sleep
in, the higher the chances are that you'll have a bad dream.
38. Human lips have a reddish color
because of the great concentration of tiny capillaries just below the skin.
39. Three hundred million cells die
in the human body every minute.
40. Like fingerprints, every
individual has an unique tongue print that can be used for identification.
41. A human head remains conscious
for about 15 to 20 seconds after it has been decapitated.
42. It takes 17 muscles to smile
and 43 to frown.
43. Humans can make do longer
without food than sleep. Provided there is water, the average human could
survive a month to two months without food depending on their body fat and
other factors. Sleep deprived people, however, start experiencing radical personality
and psychological changes after only a few sleepless days. The longest recorded
time anyone has ever gone without sleep is 11 days, at the end of which the
experimenter was awake, but stumbled over words, hallucinated and frequently
forgot what he was doing.
44. The most common blood type in
the world is Type O. The rarest blood type, A-H or Bombay blood, due to the
location of its discovery, has been found in less than hundred people since it
was discovered.
45. Every human spent about half an
hour after being conceived, as a single cell. Shortly afterward, the cells
begin rapidly dividing and begin forming the components of a tiny embryo.
46. Right-handed people live, on
average, nine years longer than left-handed people do.
47. Your ears secrete more earwax
when you are afraid than when you aren't.
48. Koalas and primates are the
only animals with unique fingerprints..
49. Humans are the only animals to
produce emotional tears.
50. The human heart creates enough
pressure to squirt blood 30 feet in the air.
