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MEDICAL FACTS

1
The average red blood cell lives for 120 days.
2
There are 2.5 trillion (give or take) of red blood cells in your body at any moment. To maintain this number, about two and a half million new ones need to be produced every second by your bone marrow.That's like a new population of the city of Toronto every second.
3
Considering all the tissues and cells in your body, 25 million new cells are being produced each second. That's a little less than the population of Canada - every second !
4
A red blood cell can circumnavigate your body in under 20 seconds.
5
Nerve Impulses travel at over 400 km/hr (25 mi/hr).
6
A sneeze generates a wind of 166 km/hr (100 mi/hr), and a cough moves out at 100 km/hr (60 mi/hr).
7
Our heart beats around 100,00 times every day.
8
Our blood is on a 60,000-mile journey.
9
Our eyes can distinguish up to one million colour surfaces and take in more information than the largest telescope known to man.
10
Our lungs inhale over two million litres of air every day, without even thinking. They are large enough to cover a tennis court.
11
We give birth to 100 billion red cells every day.
12
When we touch something, we send a message to our brain at 124 mph
13
We exercise at least 30 muscles when we smile.
14
We are about 70 percent water.
15
We make one litre of saliva a day.
16
Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.
17
In one square inch of our hand we have nine feet of blood vessels, 600 pain sensors, 9000 nerve endings, 36 heat sensors and 75 pressure sensors.
18
We have copper, zinc, cobalt, calcium, manganese, phosphates, nickel and silicon in our bodies.
19
It is believed that the main purpose of eyebrows is to keep sweat out of the eyes.
20
A person can expect to breathe in about 40 pounds of dust over his/her lifetime.
21
There are more living organisms on the skin of a single human being than there are human beings on the surface of the earth.
22
From the age of thirty, humans gradually begin to shrink in size.
23
Your body contains enough iron to make a spike strong enough to hold your weight.
24
The surface area of a human lung is equal to that of a tennis court.
25
Most people have lost fifty per cent of their taste buds by the time they reach the age of sixty.
26
The amount of carbon in the human body is enough to fill about 9,000 'lead' pencils.
27
One square inch of human skin contains 625 sweat glands.
28
When you blush, your stomach lining also reddens.
29
The human body has less muscles in it than a caterpillar.
30
If you could save all the times your eyes blink in one life time and use them all at once you would see blackness for 1.2 years!
31
The life span of a taste bud is ten days.
32
It's impossible to sneeze with your eyes open.
33
Give a tennis ball a good, hard squee ze. You're using about the same amount of force your heart uses to pump blood out to the body.
34
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
35
Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.
36
Your body has about 5.6 liters (6 quarts) of blood. This 5.6 liters of blood circulates through the body three times every minute.
37
The heart pumps about 1 million barrels of blood during an average lifetime--that's enough to fill more than 3 super tankers.
38
Babies start dreaming even before they're born.
39
The human body can function without a brain.
40
Humans are the only primates that don't have pigment in the palms of their hands.
41
10% of human dry weight comes from bacteria.
42
There is more bacteria in your mouth than the human population of the United States and Canada combined .
43
Every square inch of the human body has an average of 32 million bacteria on it.
44
A fetus acquires fingerprints at the age of three months
45
You sit on the biggest muscle in your body, the gluteus maximus a.k.a. the butt. Each of the two cheeky muscles tips the scales at about two pounds (not including the overlying fat layer).
46
The tiniest muscle, the stapedius of the middle ear , is just one-fifth of an inch long.
47
The average human head weighs about 10 pounds.
48
The average human brain weighs three pounds.
49
The DNA helix measures 80 billionths of an inch wide.
50
Your eyeballs are three and a half percent salt
51
Head lice actually prefer to live on clean heads, not on dirty ones.
52
If Barbie were life-size, her measurements would be 39-23-33. She would stand seven feet, two inches tall and have a neck twice the length of a normal human's neck.
53
It takes about 20 seconds for a red blood cell to circle the whole body.
54
An average human drinks about 16,000 gallons of water in a lifetime.
55
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.
56
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.
57
It only takes 7lbs of pressure to rip your ear off.
58
When you sneeze, all your bodily functions stop - even your heart.
59
Human teeth are almost as hard as rocks.
60
You burn more calories sleeping than you do watching T.V.
61
Our eyes never grow, and our nose and ears never stop growing.
62
The thumbnail grows the slowest; the middle nail grows the fastest
63
Children grow faster in the springtime.
64
Women blink nearly twice as much as men.
65
You can only smell 1/20th as well as a dog.
66
People are the only animals in the world who cry tears.
67
Every month you grow a brand new outer layer of skin..."a new you!".
68
In your very own lifetime, you'll produce enough spit to fill two swimming pools.
69
You breathe in about 7 quarts of air every minute. Good ! Air is cost free.
70
Your dad sweats enough each day to fill up a 6 pack of soda cans...and then some.
71
Every time you lick a stamp, you're consuming 1/10 of a calorie.
72
If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
73
If you toot consistently for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb.
74
The human heart creates enough pressure when it pumps blood, that it could squirt blood 30 feet.
75
Banging your head against a wall uses 150 calories an hour.
76
On average people fear spiders more than they do death.
77
Americans on the average eat 18 acres of pizza every day.
78
Did you know that you are more likely to be killed by a champagne cork than by a poisonous spider?
79
Right-handed people live, on average, nine years longer than left-handed people do.
80
If you blink one eye you move over 200 muscles.
81
The length of your foot is the same as that of your forearm between your wrist and the inside of your elbow.
82
In 24 hours, the blood in the body travels a total of 12,000 miles - that's four times the width of North America.
83
The human gut contains about 1kg (2.2 lbs) of bacteria. In fact, there are more bacteria growing in and on the body than there are human cells.
84
Humans have more facial muscles than any other animal on earth - 22 on each side of the face.
85
Before their first birthday, average babies will have dribbled 255 pints of saliva. By the time they're two years old, they will have crawled 93 miles.
86
The human hand contains three main nerves, two major arteries and 27 different bones - more of the body is devoted to controlling the hands than any other part of the body.
87
In the average lifetime, we spend five years eating and we consume around 7,000 times our own weight in food.
88
When we go to sleep and enter REM (Rapid Eye Movement),our bodies become completely paralysed as areas of the brain that control movement are de-activated. It is this that stops us falling out of bed.
89
By the time a woman has reached her 60s, she will have released around 450 baby making eggs
90
When full, the human bladder can hold two pints of urine.
91
In a lifetime, a human being will grow six feet of nose hair and shed 42 lbs of dead skin.
92
A human being can look forward to having sex an average of 2,580 times with five different partners.
93
Skin can now be artificially grown.One amazing result of this is that the skin from one hand could be grown into enough to cover six football pitches.
94
There are 137 million light sensitive cells in the eye's retina and the fluid that fills the eye is changed 15 times a day.
95
Humans and dolphins are the only species that have sex for pleasure.
96
The average person falls asleep in seven minutes.
97
During your lifetime, you'll eat about 60,000 pounds of food, that's the weight of about 6 elephants!
98
In space, astronauts cannot cry, because there is no gravity, so the tears can't flow!
99
Your ribs move about 5 million times a year, every time you breathe!
100
Most dust particles in your house are made from dead skin!
101
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realises it's there.
103
At birth we have over 300 bones. As we grow up, some of the bones begin to fuse together as a result an adult has only 206 bones.
104
The human hand has 27 bones.
107
The femur/thigh bone is the longest bone in our body, it is about a quarter of ones height.
108
The human body has 230 movable and semi- movable joints
109
Our Brain has over 100 billion nerve cells. ...


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