astounding facts about the human body
Hard working heart
. The heart is the hardest working muscle in the body. Every day, it creates enough energy to drive a lorry over 30 kilometres. Over a lifetime, thats equivalent to driving to the moon and back.
. The brain is 60 percent fat but it still works hard. At any given time your brain can generate up to 25 watts of power thatís enough to power a light bulb.
. Your brain is always working. Scientists say the average person has roughly 70,000 thoughts each day and is actually more active while youre sleeping.
. Youre born with more than 300 bones but by the time youre an adult you have just 206. This is because some of the bones fuse together.
Womb with a view
. Babies in the womb grow 8,000 new brain cells every second. Newborn babies can recognise their motherís face after just a few hours.
. Scientists have discovered that the visual cortex of blind people can rewire itself to respond to stimuli received through touch and hearing, helping them to see by touch and sound.
. The brain itself doesnt have any pain receptors, so doesnt feel anything which is why surgeons can perform open brain procedures on patients while they are awake.
. During an average lifetime, the heart will pump nearly 1.5 million barrels of blood. A pumping human heart can squirt blood 9.1 metres.
. The typical human sneeze travels at just under 64 km/h. Thats the same speed as a running tiger!
Astounding Facts 23
. ?Our blood is on a 60,000 mile journey per day.
Astounding Facts 24
. Our eyes can distinguish up to ten million colour surfaces and take in more information than the largest telescope known to man.
Astounding Facts 22
. ?Our heart beats around 100,00 times every day or about 30 million times in a year.
Astounding Facts 21
. ?A sneeze generates a wind of 166 km/hr (100 mi/hr), and a cough moves out at 100 km/hr (60 mi/hr).
Astounding Facts 20
. ?Nerve Impulses travel at over 400 km/hr (249 mi/hr).
Astounding Facts 19
. A red blood cell can circumnavigate your body in under 20 seconds.
Astounding Facts 16
. The average red blood cell lives for 120 days.
Astounding Facts 17
. 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.
Astounding Facts 18
. 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 !
Astounding Facts 50
. Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.
Astounding Facts 49
. The aorta, the largest artery in the body, is almost the diameter of a garden hose.
Astounding Facts 48
. 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.
Astounding Facts 47
. ?It s impossible to sneeze with your eyes open.
Astounding Facts 46
. The life span of a taste bud is ten days.
Astounding Facts 45
. 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!
Astounding Facts 44
. The human body has less muscles in it than a caterpillar.
Astounding Facts 43
. When you blush, your stomach lining also reddens.
Astounding Facts 42
. One square inch of human skin contains 625 sweat glands.
Astounding Facts 41
. The amount of carbon in the human body is enough to fill about 9,000 lead pencils.
Astounding Facts 40
. ?Most people have lost fifty per cent of their taste buds by the time they reach the age of sixty.
Astounding Facts 39
. ?The surface area of a human lung is equal to that of a tennis court.
Astounding Facts 38
. Your body contains enough iron to make a spike strong enough to hold your weight.
Astounding Facts 37
. ?From the age of thirty, humans gradually begin to shrink in size.
Astounding Facts 25
. Our lungs inhale over two million litres of air every day, without even thinking. Their surface area is large enough to cover one side of a tennis court.
Astounding Facts 26
. ?We give birth to over 200 billion red cells every day.
Astounding Facts 27
. When we touch something, we send a message to our brain at 124 mph
Astounding Facts 28
. We exercise at least 36 muscles when we smile.
Astounding Facts 29
. We are about 70 percent water.
Astounding Facts 30
. We make around 1 to 1.6 litres of saliva a day.
Astounding Facts 31
. Our nose is our personal air conditioning system: it warms cold air, cools hot air and filters impurities.
Astounding Facts 32
. ?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.
Astounding Facts 33
. We have copper, zinc, cobalt, calcium, manganese, phosphates, nickel and silicon in our bodies.
Astounding Facts 34
. ?It is believed that the main purpose of eyebrows is to keep sweat out of the eyes.
Astounding Facts 35
. A person can expect to breathe in about 45 pounds of dust over his/her lifetime.
Astounding Facts 36
. There are more living organisms on the skin of a single human being than there are human beings on the surface of the earth.
Astounding Facts 60
. ?The tiniest muscle, the stapedius of the middle ear , is just one fifth of an inch long.
Astounding Facts 59
. 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).
Astounding Facts 58
. A fetus acquires fingerprints at the age of three months
Astounding Facts 57
. Every square inch of the human body has an average of 32 million bacteria on it.
Astounding Facts 56
. ?There is more bacteria in your mouth than the human population of the United States and Canada combined .
Astounding Facts 55
. 10% of human dry weight comes from bacteria.
Astounding Facts 54
. Humans are the only primates that don t have pigment in the palms of their hands.
Astounding Facts 53
. Babies start dreaming even before they re born.
Astounding Facts 52
. The heart pumps about 1 million barrels of blood during an average lifetime that s enough to fill 2 oil super tankers!
Astounding Facts 51
. 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.
Astounding Facts 90
. Right handed people live, on average, nine years longer than left handed people do.
Astounding Facts 89
. ?Did you know that you are more likely to be killed by a champagne cork than by a poisonous spider?
Astounding Facts 88
. Americans on the average eat 18 acres of pizza every day.
Astounding Facts 87
. On average people fear spiders more than they do death.
Astounding Facts 86
. Banging your head against a wall uses 150 calories an hour.
Astounding Facts 85
. The human heart creates enough pressure when it pumps blood, that it could squirt blood 30 feet.
Astounding Facts 84
. If you toot consistently for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb.
Astounding Facts 83
. If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
Astounding Facts 82
. Every time you lick a stamp, you re consuming 1/10 of a calorie.
Astounding Facts 81
. Your dad sweats enough each day to fill up a 6 pack of soda cans...and then some.
Astounding Facts 80
. You breathe in about 7 quarts of air every minute. We breathe 13 pints of air every minute.
Astounding Facts 79
. In your very own lifetime, you ll produce enough spit to fill two swimming pools.
Astounding Facts 78
. People are the only animals in the world who cry tears.
Astounding Facts 76
. Women blink nearly twice as much as men.
Astounding Facts 77
. ?You can only smell 1/20th as well as a dog.
Astounding Facts 75
. Children grow faster in the springtime.
Astounding Facts 74
. ?The thumbnail grows the slowest; the middle nail grows the fastest
Astounding Facts 73
. ?Our eyes never grow, and our nose and ears never stop growing.
Astounding Facts 71
. Human teeth are almost as hard as rocks.
Astounding Facts 72
. You burn more calories while sleeping than you do when watching television.
Astounding Facts 61
. The average human head weighs about 10 pounds.
Astounding Facts 62
. ?The average human brain weighs about 3 pounds.
Astounding Facts 63
. The DNA helix measures 80 billionths of an inch wide.
Astounding Facts 64
. Your eyeballs are three and a half percent salt.
Astounding Facts 65
. 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.
Astounding Facts 66
. ?It takes about 20 seconds for a red blood cell to circle the whole body.
Astounding Facts 67
. An average human drinks about 16,000 gallons of water in a lifetime.
Astounding Facts 68
. 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.
Astounding Facts 69
. 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.
Astounding Facts 70
. ?It only takes 7 pounds of pressure to rip your ear off.
Astounding Facts 94
. 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.
Astounding Facts 93
. In 24 hours, the blood in the body travels a total of 12,000 miles that s four times the width of North America.
Astounding Facts 92
. The length of your foot is the same as that of your forearm between your wrist and the inside of your elbow.
Astounding Facts 91
. If you blink one eye you move over 200 muscles.
Astounding Facts 95
. Humans have more facial muscles than any other animal on earth 22 on each side of the face.
Astounding Facts 96
. 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.
Astounding Facts 97
. 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.
Astounding Facts 98
. In the average lifetime, we spend five years eating and we consume around 7,000 times our own weight in food.
Astounding Facts 99
. 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.
Astounding Facts 100
. By the time a woman has reached her 60s, she will have released around 450 baby making eggs
Astounding Facts 101
. When full, the human bladder can hold two pints of urine.
Astounding Facts 102
. In a lifetime, a human being will grow six feet of nose hair and shed 42 lbs of dead skin.
Astounding Facts 103
. A human being can look forward to having sex an average of 2,580 times with five different partners.
Astounding Facts 104
. ?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.
Astounding Facts 105
. 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.
Astounding Facts 106
. ?Humans and dolphins are the only species that have sex for pleasure.
Astounding Facts 107
. The average person falls asleep in seven minutes.
Astounding Facts 108
. During your lifetime, you ll eat about 60,000 pounds of food, that s the weight of about 6 elephants!
Astounding Facts 109
. ?In space, astronauts cannot cry, because there is no gravity, so the tears can t flow!
Astounding Facts 110
. Your ribs move about 5 million times a year, every time you breathe!
Astounding Facts 111
. A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realises it s there.
Astounding Facts 112
. 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.
Astounding Facts 113
. The femur/thigh bone is the longest bone in our body, it is about a quarter of ones height.
Astounding Facts 114
. The human body has 230 movable and semi movable joints
Astounding Facts 115
. Our Brain has over 100 billion nerve cells.