1. 
There are more living organisms on the skin of a single human being than there are human beings on the surface of the earth.
There are more living organisms on the skin of a single human being than there are human beings on the surface of the earth.
2. 
From the age of thirty, humans gradually begin to shrink in size.
From the age of thirty, humans gradually begin to shrink in size.
3. 
Your body contains enough iron to make a spike strong enough to hold your weight.
Your body contains enough iron to make a spike strong enough to hold your weight.
4. 
The surface area of a human lung is equal to that of a tennis court.
The surface area of a human lung is equal to that of a tennis court.
5. 
Most people have lost fifty per cent of their taste buds by the time they reach the age of sixty.
Most people have lost fifty per cent of their taste buds by the time they reach the age of sixty.
6. 
The amount of carbon in the human body is enough to fill about 9,000 'lead' pencils.
The amount of carbon in the human body is enough to fill about 9,000 'lead' pencils.
7. 
One square inch of human skin contains 625 sweat glands.
One square inch of human skin contains 625 sweat glands.
8. 
When you blush, your stomach lining also reddens.
When you blush, your stomach lining also reddens.
9. 
The human body has less muscles in it than a caterpillar.1
The human body has less muscles in it than a caterpillar.1
10
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!
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!
11. 
The life span of a taste bud is ten days.
The life span of a taste bud is ten days.
12. 
It's impossible to sneeze with your eyes open.
It's impossible to sneeze with your eyes open.
13. 
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.
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.
14. 
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
15. 
Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.
Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.
16. 
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.
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.
17. 
The heart pumps about 1 million barrels of blood during an average lifetime - that's enough to fill 2 oil super tankers!
The heart pumps about 1 million barrels of blood during an average lifetime - that's enough to fill 2 oil super tankers!
18. 
Babies start dreaming even before they're born.
Babies start dreaming even before they're born.
19. 
Humans are the only primates that don't have pigment in the palms of their hands.
Humans are the only primates that don't have pigment in the palms of their hands.
20. 
10% of human dry weight comes from bacteria.
21.
There is more bacteria in your mouth than the human population of the United States and Canada combined .
10% of human dry weight comes from bacteria.21.
There is more bacteria in your mouth than the human population of the United States and Canada combined .
22. 
Every square inch of the human body has an average of 32 million bacteria on it.
Every square inch of the human body has an average of 32 million bacteria on it.
23. 
A fetus acquires fingerprints at the age of three months
A fetus acquires fingerprints at the age of three months
24. 
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).
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).
25. 
The tiniest muscle, the stapedius of the middle ear , is just one-fifth of an inch long.
The tiniest muscle, the stapedius of the middle ear , is just one-fifth of an inch long.
26. 
The average human head weighs about 10 pounds.
The average human head weighs about 10 pounds.
27. 
The average human brain weighs about 3 pounds.
The average human brain weighs about 3 pounds.
28. 
The DNA helix measures 80 billionths of an inch wide.
The DNA helix measures 80 billionths of an inch wide.
29. 
Your eyeballs are three and a half percent salt.
Your eyeballs are three and a half percent salt.
30. 
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.
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.
31. 
It takes about 20 seconds for a red blood cell to circle the whole body.
It takes about 20 seconds for a red blood cell to circle the whole body.
32. 
An average human drinks about 16,000 gallons of water in a lifetime.
An average human drinks about 16,000 gallons of water in a lifetime.
33. 
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.
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.
34. 
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.
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.
35. 
It only takes 7 pounds of pressure to rip your ear off.
It only takes 7 pounds of pressure to rip your ear off.
36. 
Human teeth are almost as hard as rocks.
Human teeth are almost as hard as rocks.
77. 
You burn more calories while sleeping than you do when watching television.
You burn more calories while sleeping than you do when watching television.
38. 
Our eyes never grow, and our nose and ears never stop growing.
Our eyes never grow, and our nose and ears never stop growing.
39. 
The thumbnail grows the slowest; the middle nail grows the fastest
The thumbnail grows the slowest; the middle nail grows the fastest
40. 
Children grow faster in the springtime.61. 
Women blink nearly twice as much as men.
Children grow faster in the springtime.61. Women blink nearly twice as much as men.
42. 
You can only smell 1/20th as well as a dog.
You can only smell 1/20th as well as a dog.
43. 
People are the only animals in the world who cry tears.
People are the only animals in the world who cry tears.
44. 
In your very own lifetime, you'll produce enough spit to fill two swimming pools.
In your very own lifetime, you'll produce enough spit to fill two swimming pools.
45. 
You breathe in about 7 quarts of air every minute. We breathe 13 pints of air every minute.
You breathe in about 7 quarts of air every minute. We breathe 13 pints of air every minute.
4 6. 
Your dad sweats enough each day to fill up a 6 pack of soda cans...and then some.
Your dad sweats enough each day to fill up a 6 pack of soda cans...and then some.
47. 
Every time you lick a stamp, you're consuming 1/10 of a calorie.
Every time you lick a stamp, you're consuming 1/10 of a calorie.
48. 
If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
49. 
If you toot consistently for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb.
If you toot consistently for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb.
50. 
The human heart creates enough pressure when it pumps blood, that it could squirt blood 30 feet.
The human heart creates enough pressure when it pumps blood, that it could squirt blood 30 feet.
51. 
Banging your head against a wall uses 150 calories an hour.
Banging your head against a wall uses 150 calories an hour.
52. 
On average people fear spiders more than they do death.
On average people fear spiders more than they do death.
53. 
Americans on the average eat 18 acres of pizza every day.
Americans on the average eat 18 acres of pizza every day.
54. 
Did you know that you are more likely to be killed by a champagne cork than by a poisonous spider?
Did you know that you are more likely to be killed by a champagne cork than by a poisonous spider?
55. 
Right-handed people live, on average, nine years longer than left-handed people do.
Right-handed people live, on average, nine years longer than left-handed people do.
56. 
If you blink one eye you move over 200 muscles.
If you blink one eye you move over 200 muscles.
57. 
The length of your foot is the same as that of your forearm between your wrist and the inside of your elbow.
The length of your foot is the same as that of your forearm between your wrist and the inside of your elbow.
58. 
In 24 hours, the blood in the body travels a total of 12,000 miles - that's four times the width of North America.
In 24 hours, the blood in the body travels a total of 12,000 miles - that's four times the width of North America.
59. 
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.
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.
60. 
Humans have more facial muscles than any other animal on earth - 22 on each side of the face
61.
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.
Humans have more facial muscles than any other animal on earth - 22 on each side of the face61.
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.
62. 
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.
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.
63. 
In the average lifetime, we spend five years eating and we consume around 7,000 times our own weight in food.
In the average lifetime, we spend five years eating and we consume around 7,000 times our own weight in food.
64. 
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.
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.
65. 
By the time a woman has reached her 60s, she will have released around 450 baby making eggs
By the time a woman has reached her 60s, she will have released around 450 baby making eggs
66. 
When full, the human bladder can hold two pints of urine.
When full, the human bladder can hold two pints of urine.
67. 
In a lifetime, a human being will grow six feet of nose hair and shed 42 lbs of dead skin.
In a lifetime, a human being will grow six feet of nose hair and shed 42 lbs of dead skin.
68. 
A human being can look forward to having sex an average of 2,580 times with five different partners.
A human being can look forward to having sex an average of 2,580 times with five different partners.
69. 
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.
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.
70. 
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.
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.
71. 
Humans and dolphins are the only species that have sex for pleasure.
Humans and dolphins are the only species that have sex for pleasure.
72. 
The average person falls asleep in seven minutes.
The average person falls asleep in seven minutes.
73. 
During your lifetime, you'll eat about 60,000 pounds of food, that's the weight of about 6 elephants!
During your lifetime, you'll eat about 60,000 pounds of food, that's the weight of about 6 elephants!
74. 
In space, astronauts cannot cry, because there is no gravity, so the tears can't flow!
In space, astronauts cannot cry, because there is no gravity, so the tears can't flow!
75. 
Your ribs move about 5 million times a year, every time you breathe!
Your ribs move about 5 million times a year, every time you breathe!
76. 
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realises it's there.
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realises it's there.
77. 
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.
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.
78. 
The femur/thigh bone is the longest bone in our body, it is about a quarter of ones height.
The femur/thigh bone is the longest bone in our body, it is about a quarter of ones height.
79. 
The human body has 230 movable and semi- movable joints
The human body has 230 movable and semi- movable joints
80. 
Our Brain has over 100 billion nerve cells
81.
A newborn babys brain grows almost 3 times during the first year of life.
Our Brain has over 100 billion nerve cells81.
A newborn babys brain grows almost 3 times during the first year of life.
82. 
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.
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.
83. 
The length of human blood vessel is such that it circles the globe 2 ½ times.
The length of human blood vessel is such that it circles the globe 2 ½ times.
84. 
The human heart beats 30 million times a year.
The human heart beats 30 million times a year.
85. 
80 hairs are likely to fall every day.
80 hairs are likely to fall every day.
86. 
The muscles of the eye move more than 100,000 times a day.
The muscles of the eye move more than 100,000 times a day.
87. 
We breathe 13 pints of air every minute.
We breathe 13 pints of air every minute.
88. 
Human skin has a tendency to shed 40 pounds of skin in lifetime.
Human skin has a tendency to shed 40 pounds of skin in lifetime.
89. 
Human kidneys have about 1 million nephrons that filters out liquids and wastes.
Human kidneys have about 1 million nephrons that filters out liquids and wastes.
90. 
Fingernails contain keratin and they seem to be strongest component in the human body.
Fingernails contain keratin and they seem to be strongest component in the human body.
91. 
The human skin contains 45 miles of nerves.
The human skin contains 45 miles of nerves.
92. 
Most people blink about 25 times per minute.
Most people blink about 25 times per minute.
93. 
For every 2 weeks, the human stomach produces new layer of mucous lining, otherwise the stomach will digest itself.
For every 2 weeks, the human stomach produces new layer of mucous lining, otherwise the stomach will digest itself.
94. 
Every person has a unique tongue print.
Every person has a unique tongue print.
95. 
The tooth is the only part of the human body that cannot heal and repair by its own.
The tooth is the only part of the human body that cannot heal and repair by its own.
96. 
In one square inch of skin there are 4 yards of nerve fibers.
In one square inch of skin there are 4 yards of nerve fibers.
97. 
The human ear can distinguish between hundreds of thousands of different sounds.
The human ear can distinguish between hundreds of thousands of different sounds.
98. 
On an average the human scalp has about 100,000 hairs.
On an average the human scalp has about 100,000 hairs.
99. 
Nails of toes or fingers take about 6 months to grow from base to tip.
Nails of toes or fingers take about 6 months to grow from base to tip.
100. 
A square inch of skin consists of 1300 nerve cells.
101.
The adult human brain is about 2 % of total body weight.
A square inch of skin consists of 1300 nerve cells.101.
The adult human brain is about 2 % of total body weight.
102. 
On an average 1.7 liters of saliva produces each day.
On an average 1.7 liters of saliva produces each day.
103. 
In one square inch of skin, there are 3 million cells.
In one square inch of skin, there are 3 million cells.
104. 
The human body consists of over 600 muscles.
The human body consists of over 600 muscles.
105. 
As we get older, the brain loses almost one gram per year.
As we get older, the brain loses almost one gram per year.
106. 
Oesophagus/or food pipe, which is the passage for the food we eat to the stomach, is approximately 25 cm long.
Oesophagus/or food pipe, which is the passage for the food we eat to the stomach, is approximately 25 cm long.
107. 
A square inch of skin consists of three yards of blood vessel.
A square inch of skin consists of three yards of blood vessel.
108. 
There are about 13, 500,00 neurons in the human spinal cord.
There are about 13, 500,00 neurons in the human spinal cord.
109. 
The human tongue has 10,000 taste buds.
The human tongue has 10,000 taste buds.
110. 
The cells of taste buds are constantly being renewed, roughly on every ten hours.
The cells of taste buds are constantly being renewed, roughly on every ten hours.
111. 
An average human head weighs about 8 pounds.
An average human head weighs about 8 pounds.
112. 
The human eyeball is 24.5 mm long.
The human eyeball is 24.5 mm long.
113. 
Taste buds are present inside the mouth and also at the roof of the mouth.
Taste buds are present inside the mouth and also at the roof of the mouth.
114. 
The human spinal cord is 45 cm long in men and 43 cm long in women.
The human spinal cord is 45 cm long in men and 43 cm long in women.
115. 
The weight of human cerebellum is 150g.
The weight of human cerebellum is 150g.
116. 
The strongest muscles of the human body are masseters, which are present on either side of the mouth.
The strongest muscles of the human body are masseters, which are present on either side of the mouth.
117. 
The human liver performs 500 different functions.
The human liver performs 500 different functions.
118. 
The heart muscles will stop working only when we die.
The heart muscles will stop working only when we die.
119. 
Children have more sensitive ears than adults.
Children have more sensitive ears than adults.
120. 
Shivering is a way of trying to keep our body warm
.121.
Humans have the ability to distinguish 4,000 to 10, 000 smells.
Shivering is a way of trying to keep our body warm.121.
Humans have the ability to distinguish 4,000 to 10, 000 smells.
122. 
Every hour, the human eye can process 36,000 bits of information.
Every hour, the human eye can process 36,000 bits of information.
123. 
Nails and corneas are the only two tissues in the body that do not receive oxygen from blood.
Nails and corneas are the only two tissues in the body that do not receive oxygen from blood.
124 
The length of the finger indicates how fast the nail grows. The nail of the middle finger grows faster than others.
The length of the finger indicates how fast the nail grows. The nail of the middle finger grows faster than others.
125. 
The human ears can hear in the frequency of 1,000 to 50, 000 hertz.
The human ears can hear in the frequency of 1,000 to 50, 000 hertz.
126. 
The total surface area of the human brain is about 25, 000 square cms.
The total surface area of the human brain is about 25, 000 square cms.
127 
Sound that is above 130 decibels can cause pain to our ears.
Sound that is above 130 decibels can cause pain to our ears.
128. 
There are around 100 receptors in each of our fingertips.
There are around 100 receptors in each of our fingertips.
129. 
The weight of skin in a human adult is 8 to 10 pounds.
The weight of skin in a human adult is 8 to 10 pounds.
130. 
The middle part of the back is the least sensitive part of our body.
The middle part of the back is the least sensitive part of our body.
131. 
Children have better sense of smell than adults.
Children have better sense of smell than adults.
132. 
The eyelashes shed by a human in his entire life is of 30 m of length.
The eyelashes shed by a human in his entire life is of 30 m of length.
133. 
After death, the body starts to dry out creating an illusion that the nails and hairs are growing even after death.
After death, the body starts to dry out creating an illusion that the nails and hairs are growing even after death.
134. 
The base of the spinal cord has a cluster of nerves, which are most sensitive.
The base of the spinal cord has a cluster of nerves, which are most sensitive.
135. 
Platelets, which are one of the constituents of the blood are produced at the rate of one hundered billion per day.
Platelets, which are one of the constituents of the blood are produced at the rate of one hundered billion per day.
136. 
The sense of taste is the weakest of the five senses.
The sense of taste is the weakest of the five senses.
137. 
Humans have the ability to differentiate about 10, 000 odour.
Humans have the ability to differentiate about 10, 000 odour.
138. 
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.
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.
139. 
If human sense of smell is affected, sense of taste is also affected as the brain interprets signals from the nose and tongue.
If human sense of smell is affected, sense of taste is also affected as the brain interprets signals from the nose and tongue.
140. 
There are around 1,200,000 optic fibers in the human eye
141.
The lens of the human eye is composed of 65 % of water and 3 % of protein.
There are around 1,200,000 optic fibers in the human eye141.
The lens of the human eye is composed of 65 % of water and 3 % of protein.
142. 
We shut our eyes for 0.3 seconds, when we blink.
We shut our eyes for 0.3 seconds, when we blink.
143. 
Eyes are the only part of the human body that functions at 100 percent ability at any movement.
Eyes are the only part of the human body that functions at 100 percent ability at any movement.
144. 
A drop of blood contains 250 million cells.
A drop of blood contains 250 million cells.
145. 
The liver is the largest and heaviest internal organ of the body and weighs about 1.6 kilos.
The liver is the largest and heaviest internal organ of the body and weighs about 1.6 kilos.
146. 
In the womb, the baby's body is covered by a thin layer of hair but as soon as the baby is born it disappears.
In the womb, the baby's body is covered by a thin layer of hair but as soon as the baby is born it disappears.
147. 
Babies crawl to an average of 200 m a day.
Babies crawl to an average of 200 m a day.
148. 
The only joint less bone in the human body is the hyoid bone, which is present in the throat area.
The only joint less bone in the human body is the hyoid bone, which is present in the throat area.
149. 
Eating Break fast helps to burn 5 to 20 percent of calories throughout the day.
Eating Break fast helps to burn 5 to 20 percent of calories throughout the day.
150. 
The surface of human tongue is covered with 100 of tiny structures called papillae.
The surface of human tongue is covered with 100 of tiny structures called papillae.
151. 
On an average, a persons left hand does 56 % of typing.
On an average, a persons left hand does 56 % of typing.
152. 
A person can live without food for about a month, but only a week without water.
A person can live without food for about a month, but only a week without water.
153. 
Threshold pain of women is 9 times stronger than men.
Threshold pain of women is 9 times stronger than men.
154. 
The palms of the hands and soles of the feet contain more sweat glands than other parts of the body.
The palms of the hands and soles of the feet contain more sweat glands than other parts of the body.
155. 
10 % of men and 8 % of women are left-handed.
10 % of men and 8 % of women are left-handed.
156. 
An average human body contains enough amount of fat to make seven bars of soap.
An average human body contains enough amount of fat to make seven bars of soap.
157. 
The human body releases growth hormones during sleep.
The human body releases growth hormones during sleep.
158. 
Red blood cells are about seven micrometer in diameter.
Red blood cells are about seven micrometer in diameter.
159. 
The thighbone is so strong that it withstands the axial load of about 1600-1800 kilos.
The thighbone is so strong that it withstands the axial load of about 1600-1800 kilos.
160. 
An average adult male brain weighs about 1375 grams
161.
On an average the weight of an adult female brain is about 1275 grams.
An average adult male brain weighs about 1375 grams161.
On an average the weight of an adult female brain is about 1275 grams.
162. 
Only four percent of the brains cells work and the remaining cells are kept in reserve.
Only four percent of the brains cells work and the remaining cells are kept in reserve.
163. 
The human eye has 110-130 million receptors to perceive light.
The human eye has 110-130 million receptors to perceive light.
164. 
The human eye contains five to seven million receptors for color perception.
The human eye contains five to seven million receptors for color perception.
165. 
The human eye cannot perceive a motionless image.
The human eye cannot perceive a motionless image.
166. 
The average life span of a sperm is about 36 hours.
The average life span of a sperm is about 36 hours.
167. 
The life span of an ovule is about 12 - 24 hours.
The life span of an ovule is about 12 - 24 hours.
168. 
Only one person in two billion will live for more than 115 years of life.
Only one person in two billion will live for more than 115 years of life.
169. 
On an average, we speak about 5,000 words per day.
On an average, we speak about 5,000 words per day.
170. 
Liver is the only organ of the body, which regenerates itself completely even after being removed completely.
Liver is the only organ of the body, which regenerates itself completely even after being removed completely.
171. 
The human heart pumps 6,000 liters of blood daily through a man lifetime.
The human heart pumps 6,000 liters of blood daily through a man lifetime.
172. 
The human brain is capable of creating more ideas equivalent to that of the atoms of the universe.
The human brain is capable of creating more ideas equivalent to that of the atoms of the universe.
173. 
Hair is the fastest growing tissue in the body, the next being bone marrow.
Hair is the fastest growing tissue in the body, the next being bone marrow.
174. 
On an average, in an adult scalp 35m of hair fiber is produced every day.
On an average, in an adult scalp 35m of hair fiber is produced every day.
175. 
The maximum length of hair can be 70 to 90 cms.
The maximum length of hair can be 70 to 90 cms.
176. 
The life span of hair is two to seven years.
The life span of hair is two to seven years.
177. 
Frequent washing of hair does not cause hair loss.
Frequent washing of hair does not cause hair loss.
178. 
Brain uses 20 % of our body energy and makes up only 2 % of our body weight.
Brain uses 20 % of our body energy and makes up only 2 % of our body weight.
179. 
Any damage to brain cells cannot be repaired completely.
Any damage to brain cells cannot be repaired completely.
180. 
Human brain stops growing at the age of 18
Human brain stops growing at the age of 18
.181. 
Male hairs are denser and grow faster than females
Male hairs are denser and grow faster than females
.
182. 
Depending on the area of the human body, the thickness of the skin varies from ½ to 6 mm.
Depending on the area of the human body, the thickness of the skin varies from ½ to 6 mm.
183. 
Tongue is the strongest muscle in the human body.
Tongue is the strongest muscle in the human body.
184. 
A Pair of feet contains about 250,000 sweat glands.
A Pair of feet contains about 250,000 sweat glands.
185. 
The human skin sheds and re-grows after every 27 days.
The human skin sheds and re-grows after every 27 days.
186. 
One in every 2000 babies is born with a tooth.
One in every 2000 babies is born with a tooth.
187. 
Pregnancy in women lasts on average of about 270 days from the time of conception till birth.
Pregnancy in women lasts on average of about 270 days from the time of conception till birth.
188. 
Sneezing too hard can cause a rib fracture while suppressing a sneeze can cause damage to the blood vessels of the head or neck.
Sneezing too hard can cause a rib fracture while suppressing a sneeze can cause damage to the blood vessels of the head or neck.
189. 
About 80 % of ultra- violet rays from the sun can get through the cloud and can cause sunburn or tan even on a cloudy day.
About 80 % of ultra- violet rays from the sun can get through the cloud and can cause sunburn or tan even on a cloudy day.
190. 
The human stomach contains about 35 million small digestive glands.
The human stomach contains about 35 million small digestive glands.
191. 
The ovaries of a female contain about 600,000 immature eggs at birth.
The ovaries of a female contain about 600,000 immature eggs at birth.
192. 
The human body has 4 million pain sensitive structures.
The human body has 4 million pain sensitive structures.
193. 
Each lung contains 300-350 million respiratory units called alveoli.
Each lung contains 300-350 million respiratory units called alveoli.
194. 
A human ear contains about 24,000 fibers in it.
A human ear contains about 24,000 fibers in it.
195. 
The largest cell in the woman is the egg or ovum present that is released from the ovaries.
The largest cell in the woman is the egg or ovum present that is released from the ovaries.
196. 
Women burn fat more slowly than men.
Women burn fat more slowly than men.
197. 
The leg bone is the fastest growing bone in the human body.
The leg bone is the fastest growing bone in the human body.
198. 
There are 22 bones in the human skull.
There are 22 bones in the human skull.
199. 
A muscle called the diaphragm controls the human breathing process.
A muscle called the diaphragm controls the human breathing process.
200. 
The human brain is made up of more than 10 billion nerve cells and over 50 billion other cells and weigghs
The human brain is made up of more than 10 billion nerve cells and over 50 billion other cells and weigghs
201. 
The average red blood cell lives for 120 days.
The average red blood cell lives for 120 days.
202. 
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.
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.
203. 
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 !
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 !
204. 
A red blood cell can circumnavigate your body in under 20 seconds.
A red blood cell can circumnavigate your body in under 20 seconds.
205. 
Nerve Impulses travel at over 400 km/hr (249 mi/hr).
Nerve Impulses travel at over 400 km/hr (249 mi/hr).
206. 
A sneeze generates a wind of 166 km/hr (100 mi/hr), and a cough moves out at 100 km/hr (60 mi/hr).
A sneeze generates a wind of 166 km/hr (100 mi/hr), and a cough moves out at 100 km/hr (60 mi/hr).
207. 
Our heart beats around 100,00 times every day or about 30 million times in a year.
Our heart beats around 100,00 times every day or about 30 million times in a year.
208. 
Our blood is on a 60,000-mile journey per day.
Our blood is on a 60,000-mile journey per day.
209. 
Our eyes can distinguish up to ten million colour surfaces and take in more information than the largest telescope known to man.
Our eyes can distinguish up to ten million colour surfaces and take in more information than the largest telescope known to man.
210. 
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.
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.
211. 
We give birth to over 200 billion red cells every day.
We give birth to over 200 billion red cells every day.
212. 
When we touch something, we send a message to our brain at 124 mph
When we touch something, we send a message to our brain at 124 mph
213. 
We exercise at least 36 muscles when we smile.
We exercise at least 36 muscles when we smile.
214. 
We are about 70 percent water.
We are about 70 percent water.
215. 
We make around 1 to 1.6 litres of saliva a day.
We make around 1 to 1.6 litres of saliva a day.
216. 
Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.
Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.
217. 
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.
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.
218. 
We have copper, zinc, cobalt, calcium, manganese, phosphates, nickel and silicon in our bodies.
We have copper, zinc, cobalt, calcium, manganese, phosphates, nickel and silicon in our bodies.
219. 
It is believed that the main purpose of eyebrows is to keep sweat out of the eyes.
It is believed that the main purpose of eyebrows is to keep sweat out of the eyes.
220. 
A person can expect to breathe in about 45 pounds of dust over his/her lifetime.
A person can expect to breathe in about 45 pounds of dust over his/her lifetime.
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