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Post by vimala on Jun 15, 2008 9:54:01 GMT 5.5
Amazing Medical Facts of the Body
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.
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Post by vimala on Jun 15, 2008 9:54:34 GMT 5.5
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.
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Post by vimala on Jun 15, 2008 9:55:04 GMT 5.5
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.
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Post by vimala on Jun 15, 2008 9:55:38 GMT 5.5
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.
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Post by vimala on Jun 15, 2008 9:56:12 GMT 5.5
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!
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Post by vimala on Jun 18, 2008 17:05:40 GMT 5.5
101 A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realises it's there
102 The ears never stop growing through lifetime.
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.
105 sperm containing the xy chromosomes to become a male can swim faster but not for as long as the female xx chromosomes
106 The gastric acid in your stomach is so powerful that it is able to eat away an iron table in about 5 minutes.
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.
110 The human skull is made up of 29 different bones.
111 A newborn babys brain grows almost 3 times during the first year of life.
112 The left side of human brain controls the right side of the body and the right side of the brain controls the left side of the body.
113 The length of human blood vessel is such that it circles the globe 2 ½ times.
114 Human brain is the most powerful computer which has the processing speed of 3000+ Ghz
115 Human eye is the only multifocus lens in the world which can adjust in 2 milliseconds
116 The human heart beats 30 million times a year.
117 80 hairs are likely to fall every day.
118 The muscles of the eye move more than 100,000 times a day.
119 We breathe 13 pints of air every minute.
120 Human skin has a tendency to shed 40 pounds of skin in lifetime.
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Post by vimala on Jun 19, 2008 11:51:44 GMT 5.5
121 Human kidneys have about 1 million nephrons that filters out liquids and wastes.
122 Our heart beats around 100,00 times every day.
123 Human blood is on a 60,000mile journey.
124 Fingernails contain keratin and they seem to be strongest component in the human body.
125 The human skin contains 45 miles of nerves.
126 Most people blink about 25 times per minute.
127 For every 2 weeks, the human stomach produces new layer of mucous lining, otherwise the stomach will digest itself.
128 An average of 17 muscles contracts for a smile.
129 Every person has a unique tongue print.
130 A sneeze moves out of our mouth at a speed of 100 meters per hour.
131 An average human eye blinks about 6,205, 000 times.
132 The tooth is the only part of the human body that cannot heal and repair by its own.
133 In one square inch of skin there are 4 yards of nerve fibers.
134 The human eye has the ability to distinguish about 1 million color surfaces.
135 A square inch of skin has 100 sweat glands.
136 Your foot contains 25% of all the bones within your body.
137 Seven out of ten people cross their left arm over their right
138 The human ear can distinguish between hundreds of thousands of different sounds.
139 The brain is faster than a super computer processing billions of signals per second. Vishwanath Ananad the Indian Chess grandmaster has many times beaten the computer at chess.
140 Bones make up only 14% of our weight
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Post by vimala on Jun 19, 2008 11:55:06 GMT 5.5
141 On an average the human scalp has about 100,000 hairs.
142 Nails of toes or fingers take about 6 months to grow from base to tip.
143 A square inch of skin consists of 1300 nerve cells.
144 On an average an individual produces human being consumes about 500 kg of food per year.
145 The adult human brain is about 2 % of total body weight.
146 On an average 1.7 liters of saliva produces each day.
147 In one square inch of skin, there are 3 million cells.
148 The human body consists of over 600 muscles.
149 As we get older, the brain loses almost one gram per year.
150 Oesophagus/or food pipe, which is the passage for the food we eat to the stomach, is approximately 25 cm long.
151 A square inch of skin consists of three yards of blood vessel.
152 There are about 13, 500,00 neurons in the human spinal cord.
153 The human tongue has 10,000 taste buds.
154 The cells of taste buds are constantly being renewed, roughly on every ten hours.
155 An average human head weighs about 8 pounds.
156 Our eyes are always the same size from birth, unlike our nose and ears.
157 The human body is composed of 80 percent of water.
158 The human eyeball is 24.5 mm long.
159 The total weight of skin in an average human adult is 61 pounds.
160 Taste buds are present inside the mouth and also at the roof of the mouth.
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Post by vimala on Jun 19, 2008 11:57:29 GMT 5.5
161 The human spinal cord is 45 cm long in men and 43 cm long in women.
162 The weight of human cerebellum is 150g.
163 The strongest muscles of the human body are masseters, which are present on either side of the mouth.
164 The human liver performs 500 different functions.
165 The heart muscles will stop working only when we die.
166 Children have more sensitive ears than adults.
167 Shivering is a way of trying to keep our body warm.
168 Humans have the ability to distinguish 4,000 to 10, 000 smells.
169 Every hour, the human eye can process 36,000 bits of information.
170 Nails and corneas are the only two tissues in the body that do not receive oxygen from blood.
171 The length of the finger indicates how fast the nail grows. The nail of the middle finger grows faster than others.
172 The human ears can hear in the frequency of 1,000 to 50, 000 hertz.
173 The total surface area of the human brain is about 25, 000 square cms.
174 When the sounds are above 130 decibels, it causes pain to the ears.
175 There are around 100 receptors in each of our fingertips.
176 The weight of skin in a human adult is 4 to 5 kg.
177 The middle part of the back is the least sensitive part of our body.
178 Children have better sense of smell than adults.
179 The eyelashes shed by a human in his entire life is of 30 m of length.
180 After death, the body starts to dry out creating an illusion that the nails and hairs are growing even after death.
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Post by vimala on Jun 19, 2008 12:01:11 GMT 5.5
181 The surface of human skin is 6.5 square feet.
182 Every second, 15 million blood cells are destroyed in the human body.
183 An average human being will breathe about 23,040 times per hour.
184 The base of the spinal cord has a cluster of nerves, which are most sensitive.
185 The surface area of the human lung is equal to that of a tennis court.
186 When we reach 60 years of life, we lose 50 % of our taste buds.
187 Blinking of one eye causes movement of 200 muscles.
188 Platelets, which are one of the constituents of the blood is produced at the rate of 200 billion per day.
189 The sense of taste is the weakest of the five senses.
190 Humans have the ability to differentiate about 10, 000 odour.
191 It takes time for the newborn baby to learn to turn the pictures right side up, as it sees the world upside down in the beginning.
192 If human sense of smell is affected, sense of taste is also affected as the brain interprets signals from the nose and tongue.
193 There are around 1,200,000 optic fibers in the human eye.
194 The lens of the human eye is composed of 65 % of water and 3 % of protein.
195 We shut our eyes for 0.3 seconds, when we blink.
196 Color blind people find it hard to distinguish colors like green and red.
197 A blink of an eye lasts for 1/10th of a second.
198 Eyes are the only part of the human body that functions at 100 percent ability at any movement.
199 The human skin contains 280,000 heat receptors.
200 A drop of blood contains 250 million cells.
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Post by vimala on Jun 21, 2008 13:16:28 GMT 5.5
201 The liver is the largest and heaviest internal organ of the body and weighs about 1.6 kilos.
202 In the womb, the babys body is covered by a thin layer of hair but as soon as the baby is born it disappears.
203 At birth every one is color blind.
204 Babies crawl to an average of 200 m a day.
205 The only joint less bone in the human body is the hyoid bone, which is present in the throat area.
206 A baby gender is determined after the first 6-8 weeks of pregnancy.
207 Eating Break fast helps to burn 5 to 20 percent of calories throughout the day.
208 The surface of human tongue is covered with 100 of tiny structures called papillae.
209 On an average, a persons left hand does 56 % of typing.
210 On an average the cough that comes out of our mouth is 60 m per hour.
211 A person can live without food for about a month, but only a week without water.
212 Threshold pain of women is 9 times stronger than men.
213 The palms of the hands and soles of the feet contain more sweat glands than other parts of the body.
214 10 % of men and 8 % of women are left-handed.
215 On an average the human body contains enough water to fill 1 gallon of a tank.
216 An average human body contains enough amount of fat to make seven bars of soap.
217 The human body releases growth hormones during sleep.
218 Red blood cells are about seven micrometer in diameter.
219 The thighbone is so strong that it withstands the axial load of about 1600-1800 kilos.
220 An average adult male brain weighs about 1375 grams.
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Post by vimala on Jun 21, 2008 13:17:46 GMT 5.5
221 On an average the weight of an adult female brain is about 1275 grams.
222 Only four percent of the brains cells work and the remaining cells are kept in reserve.
223 On an average thousands of neurons dies every day.
224 The human eye has 110-130 million receptors to perceive light.
225 The human eye contains five to seven million receptors for color perception.
226 The human eye cannot perceive a motionless image.
227 The average life span of a sperm is about 36 hours.
228 The life span of an ovule is about 12 - 24 hours.
229 Only one person in two billion will live for more than 115 years of life.
230 On an average, we speak about 5,000 words per day.
231 Intelligent people have more zinc and copper in their hair.
232 Liver is the only organ of the body, which regenerates itself completely even after being removed completely.
233 The human heart pumps 6,000 liters of blood daily through a man lifetime.
234 The human brain is capable of creating more ideas equivalent to that of the atoms of the universe.
235 Hair is the fastest growing tissue in the body, the next being bone marrow.
236 On an average, in an adult scalp 35m of hair fiber is produced every day.
237 An average scalp has 100,000 hairs.
238 The maximum length of hair can be 70 to 90 cms.
239 The life span of hair is two to seven years.
240 Frequent washing of hair does not cause hair loss.
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