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 (249 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 or about
30 million times in a year.
8. Our blood is on a 60,000-mile journey per day.
9. Our eyes can distinguish up to ten 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. Their surface area is large enough to cover one
side of a tennis court.
11. We give birth to over 200 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 36 muscles when we smile.
14. We are about 70 percent water.
15. We make around 1 to 1.6 litres 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
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 2 oil super tankers!
38. Babies start dreaming even before they’re born.
39. Humans are the only primates that don’t have pigment
in the palms of their hands.
40. 10% of human dry weight comes from bacteria.
41. There is more bacteria in your mouth than the human
population of the United States
and Canada
combined .
42. Every square inch of the human body has an average of
32 million bacteria on it.
43. A fetus acquires fingerprints at the age of three
months
44. 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).
45. The tiniest muscle, the stapedius of the middle ear ,
is just one-fifth of an inch long.
46. The average human head weighs about 10 pounds.
47. The average human brain weighs about 3 pounds.
48. The DNA helix measures 80 billionths of an inch wide.
49. Your eyeballs are three and a half percent salt.
50. 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.
51. It takes about 20 seconds for a red blood cell to
circle the whole body.
52. An average human drinks about 16,000 gallons of water
in a lifetime.
53. 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.
54. 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.
55. It only takes 7 pounds of pressure to rip your ear
off.
56. Human teeth are almost as hard as rocks.
57. You burn more calories while sleeping than you do when
watching television.
58. Our eyes never grow, and our nose and ears never stop
growing.
59. The thumbnail grows the slowest; the middle nail grows
the fastest
60. Children grow faster in the springtime.
61. Women blink nearly twice as much as men.
62. You can only smell 1/20th as well as a dog.
63. People are the only animals in the world who cry
tears.
64. In your very own lifetime, you’ll produce enough spit
to fill two swimming pools.
65. You breathe in about 7 quarts of air every minute. We
breathe 13 pints of air every minute.
66. Your dad sweats enough each day to fill up a 6 pack of
soda cans...and then some.
67. Every time you lick a stamp, you’re consuming 1/10 of
a calorie.
68. If you yelled for 8 years, 7 months and 6 days, you
would have produced enough sound energy to heat one cup of coffee.
69. If you toot consistently for 6 years and 9 months,
enough gas is produced to create the energy of an atomic bomb.
70. The human heart creates enough pressure when it pumps
blood, that it could squirt blood 30 feet.
71. Banging your head against a wall uses 150 calories an
hour.
72. On average people fear spiders more than they do
death.
73. Americans on the average eat 18 acres of pizza every
day.
74. Did you know that you are more likely to be killed by
a champagne cork than by a poisonous spider?
75. Right-handed people live, on average, nine years
longer than left-handed people do.
76. If you blink one eye you move over 200 muscles.
77. The length of your foot is the same as that of your
forearm between your wrist and the inside of your elbow.
78. In 24 hours, the blood in the body travels a total of
12,000 miles - that’s four times the width of North
America.
79. 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.
80. Humans have more facial muscles than any other animal
on earth - 22 on each side of the face.
81. 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.
82. 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.
83. In the average lifetime, we spend five years eating
and we consume around 7,000 times our own weight in food.
84. 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.
85. By the time a woman has reached her 60s, she will have
released around 450 baby making eggs
86. When full, the human bladder can hold two pints of
urine.
87. In a lifetime, a human being will grow six feet of
nose hair and shed 42 lbs of dead skin.
88. A human being can look forward to having sex an
average of 2,580 times with five different partners.
89. 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.
90. 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.
91. Humans and dolphins are the only species that have sex
for pleasure.
92. The average person falls asleep in seven minutes.
93. During your lifetime, you’ll eat about 60,000 pounds
of food, that’s the weight of about 6 elephants!
94. In space, astronauts cannot cry, because there is no
gravity, so the tears can’t flow!
95. Your ribs move about 5 million times a year, every
time you breathe!
96. A hard working adult sweats up to 4 gallons per day
Most of the sweat evaporates before a person realises it’s there.
97. 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.
98. The femur/thigh bone is the longest bone in our body,
it is about a quarter of ones height.
99. The human body has 230 movable and semi- movable
joints
100. Our Brain has over 100 billion nerve cells.
101. A newborn babys brain grows almost 3 times during the
first year of life.
102. 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.
103. The length of human blood vessel is such that it
circles the globe 2 ½ times.
104. The human heart beats 30 million times a year.
105. 80 hairs are likely to fall every day.
106. The muscles of the eye move more than 100,000 times a
day.
107. We breathe 13 pints of air every minute.
108. Human skin has a tendency to shed 40 pounds of skin in
lifetime.
109. Human kidneys have about 1 million nephrons that
filters out liquids and wastes.
110. Fingernails contain keratin and they seem to be
strongest component in the human body.
111. The human skin contains 45 miles of nerves.
112. Most people blink about 25 times per minute.
113. For every 2 weeks, the human stomach produces new
layer of mucous lining, otherwise the stomach will digest itself.
114. Every person has a unique tongue print.
115. The tooth is the only part of the human body that
cannot heal and repair by its own.
116. In one square inch of skin there are 4 yards of nerve
fibers.
117. The human ear can distinguish between hundreds of
thousands of different sounds.
118. On an average the human scalp has about 100,000 hairs.
119. Nails of toes or fingers take about 6 months to grow
from base to tip.
120. A square inch of skin consists of 1300 nerve cells.
121. The adult human brain is about 2 % of total body
weight.
122. On an average 1.7 liters of saliva produces each day.
123. In one square inch of skin, there are 3 million cells.
124. The human body consists of over 600 muscles.
125. As we get older, the brain loses almost one gram per
year.
126. Oesophagus/or food pipe, which is the passage for the
food we eat to the stomach, is approximately 25 cm long.
127. A square inch of skin consists of three yards of blood
vessel.
128. There are about 13, 500,00 neurons in the human spinal
cord.
129. The human tongue has 10,000 taste buds.
130. The cells of taste buds are constantly being renewed,
roughly on every ten hours.
131. An average human head weighs about 8 pounds.
132. The human eyeball is 24.5 mm long.
133. Taste buds are present inside the mouth and also at
the roof of the mouth.
134. The human spinal cord is 45 cm long in men and 43 cm
long in women.
135. The weight of human cerebellum is 150g.
136. The strongest muscles of the human body are masseters,
which are present on either side of the mouth.
137. The human liver performs 500 different functions.
138. The heart muscles will stop working only when we die.
139. Children have more sensitive ears than adults.
140. Shivering is a way of trying to keep our body warm.
141. Humans have the ability to distinguish 4,000 to 10,
000 smells.
142. Every hour, the human eye can process 36,000 bits of
information.
143. Nails and corneas are the only two tissues in the body
that do not receive oxygen from blood.
144. The length of the finger indicates how fast the nail
grows. The nail of the middle finger grows faster than
others.
145. The human ears can hear in the frequency of 1,000 to
50, 000 hertz.
146. The total surface area of the human brain is about 25,
000 square cms.
147. Sound that is above 130 decibels can cause pain to our
ears.
148. There are around 100 receptors in each of our
fingertips.
149. The weight of skin in a human adult is 8 to 10 pounds.
150. The middle part of the back is the least sensitive
part of our body.
151. Children have better sense of smell than adults.
152. The eyelashes shed by a human in his entire life is of
30 m of length.
153. After death, the body starts to dry out creating an
illusion that the nails and hairs are growing even after death.
154. The base of the spinal cord has a cluster of nerves,
which are most sensitive.
155. Platelets, which are one of the constituents of the
blood are produced at the rate of one hundered billion per day.
156. The sense of taste is the weakest of the five senses.
157. Humans have the ability to differentiate about 10, 000
odour.
158. 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.
159. If human sense of smell is affected, sense of taste is
also affected as the brain interprets signals from the nose and tongue.
160. There are around 1,200,000 optic fibers in the human
eye.
161. The lens of the human eye is composed of 65 % of water
and 3 % of protein.
162. We shut our eyes for 0.3 seconds, when we blink.
163. Eyes are the only part of the human body that
functions at 100 percent ability at any movement.
164. A drop of blood contains 250 million cells.
165. The liver is the largest and heaviest internal organ
of the body and weighs about 1.6 kilos.
166. 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.
167. Babies crawl to an average of 200 m a day.
168. The only joint less bone in the human body is the
hyoid bone, which is present in the throat area.
169. Eating Break fast helps to burn 5 to 20 percent of
calories throughout the day.
170. The surface of human tongue is covered with 100 of
tiny structures called papillae.
171. On an average, a persons left hand does 56 % of
typing.
172. A person can live without food for about a month, but
only a week without water.
173. Threshold pain of women is 9 times stronger than men.
174. The palms of the hands and soles of the feet contain
more sweat glands than other parts of the body.
175. 10 % of men and 8 % of women are left-handed.
176. An average human body contains enough amount of fat to
make seven bars of soap.
177. The human body releases growth hormones during sleep.
178. Red blood cells are about seven micrometer in
diameter.
179. The thighbone is so strong that it withstands the
axial load of about 1600-1800 kilos.
180. An average adult male brain weighs about 1375 grams.
181. On an average the weight of an adult female brain is
about 1275 grams.
182. Only four percent of the brains cells work and the
remaining cells are kept in reserve.
183. The human eye has 110-130 million receptors to
perceive light.
184. The human eye contains five to seven million receptors
for color perception.
185. The human eye cannot perceive a motionless image.
186. The average life span of a sperm is about 36 hours.
187. The life span of an ovule is about 12 - 24 hours.
188. Only one person in two billion will live for more than
115 years of life.
189. On an average, we speak about 5,000 words per day.
190. Liver is the only organ of the body, which regenerates
itself completely even after being removed completely.
191. The human heart pumps 6,000 liters of blood daily
through a man lifetime.
192. The human brain is capable of creating more ideas
equivalent to that of the atoms of the universe.
193. Hair is the fastest growing tissue in the body, the
next being bone marrow.
194. On an average, in an adult scalp 35m of hair fiber is
produced every day.
195. The maximum length of hair can be 70 to 90 cms.
196. The life span of hair is two to seven years.
197. Frequent washing of hair does not cause hair loss.
198. Brain uses 20 % of our body energy and makes up only 2
% of our body weight.
199. Any damage to brain cells cannot be repaired
completely.
200. Human brain stops growing at the age of 18.
201. Male hairs are denser and grow faster than females.
202. Depending on the area of the human body, the thickness
of the skin varies from ½ to 6 mm.
203. Tongue is the strongest muscle in the human body.
204. A Pair of feet contains about 250,000 sweat glands.
205. The human skin sheds and re-grows after every 27 days.
206. One in every 2000 babies is born with a tooth.
207. Pregnancy in women lasts on average of about 270 days
from the time of conception till birth.
208. Sneezing too hard can cause a rib fracture while
suppressing a sneeze can cause damage to the blood vessels of the head or neck.
209. 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.
210. The human stomach contains about 35 million small
digestive glands.
211. The ovaries of a female contain about 600,000 immature
eggs at birth.
212. The human body has 4 million pain sensitive
structures.
213. Each lung contains 300-350 million respiratory units
called alveoli.
214. A human ear contains about 24,000 fibers in it.
215. The largest cell in the woman is the egg or ovum
present that is released from the ovaries.
216. Women burn fat more slowly than men.
217. The leg bone is the fastest growing bone in the human
body.
218. There are 22 bones in the human skull.
219. A muscle called the diaphragm controls the human
breathing process.
220. The human brain is made up of more than 10 billion
nerve cells and over 50 billion other cells and weighs about less than three
pounds.
221. Vitamin C and E fights against Dementia - a disease of
forgetfulness in the elderly person.
222. Half a liter of water per day is lost through breathing.
223. Drinking coffee prevents Parkinsons disease.
224. Cold weather improves human memory and concentration.
225. An adult human body contains five to six quarts of
blood and an infant has about one quart of blood.
226. Blind people understand spoken words quicker than
sighted people.
227. A human lung contains about 700 million alveoli.
228. Vitamin E protects the brain cells from damage caused
by alcohol consumption.
229. The longest muscle in the human body is sartorius,
which is present in the hip region and it is commonly called as tailors muscle.
230. Melanin, a pigment present in the skin is responsible
for the color of the skin in a person.
231. Except the heart and lungs, all other parts of the
body receive their blood supply from the largest artery of the body, the aorta.
232. The Pulmonary vein is the only vein in the human body
that carries oxygenated blood while all the other veins of the body carry
de-oxygenated blood.
233. The human blood is colorless. It is the hemoglobin; a
pigment present in the red blood cells is responsible for the red color of the
blood.
234. The human brain is very soft like that of butter.
235. A heartbeat is nothing but the sound produced by the
closure of valves of the heart when the blood is pushed through its chamber.
236. Hold out your hand and make a fist. If you are a kid,
the size of your heart is same as the size of your fist and if you are an adult
it is about the same size as twice as your fist.
237. About 500 million sperm mature every day in a normal
male adult.
238. Sixty percent of the human body nerve ends in the
forehead and the hands.
239. A human body contains about 200,000 temperature
detectors.
240. A human body has 500,000 touch detectors.
241. The human skeleton renews once in every three months.
242. The human skin cells multiply every second to replace
the worn ones.
243. The cells of the heart and brain do not multiply
through out their lifetime.
244. When we see an image, the human eye captures the
inverted image of it. It is the brains interpretation that makes us to see the
upside down captured image in to a normal erect image.
245. An average person laughs about 15 times a day.
246. A womens heart beats faster than a mens.
247. The average person is about a quarter of an inch
taller at night.
248. The food will get in to the stomach even if one stands
on their head.
249. The eyes have the fastest reacting muscle in the whole
body. It contracts in 1/100th of a second.
250. Laughing and coughing creates more pressure on the
spine than walking or standing.
251. The human heart continues to beat for 5 seconds even
after it is taken out of the body.
252. In an average person, it takes 8 seconds for food to
travel down the food pipe,3-5 hours in small intestine and 3-4 days in large
intestine.
253. The brain continues to send out electric wave signals
until approximately 37 hours after death.
254. People under 30 years of age take in double the amount
of oxygen as people over 80 years of age.
255. The human body takes 6 hours to digest a high fat meal
and it takes 2 hours for a carbohydrate meal.
256. On an average an adults heart pumps about 4,000
gallons of blood each day.
257. The muscles of our body constitute 40% of our body
weight.
258. Iris is the part of the eye that determines the color
of the eye.
259. Red Blood Cells comprise about 40 % of blood volume.
260. The human eye contains structures called Rods and
cones. Rods register the shapes of images and respond to low levels of light
and Cones responds to bright lights and registers the color of images.
261. We tend to get cold very easily in the winter season
because we are indoors and in close proximity to each other.
262. Our Muscles often work in pairs so that they can pull
in different or opposite directions.
263. The left side of the human heart is much thicker and
stronger than the right side
264. Human blood is a make up of Red Blood Cells carrying
oxygen, White Blood Cells that fight disease, Platelets that help the blood to
clot and a liquid called plasma.
265. Human hair is made up of a body protein called keratin
and it grows out of an opening of the skin called Follicle.
266. Every day 440 Gallons of blood flows through the
kidney.
267. Red Blood Cells lasts only for about 4 months before
they wear out.
268. Every minute 30,000 to 40, 000 dead skin cells fall
from our body.
269. Straight hair lies flat because it is round and grows
out of round follicles.
270. Curly hair comes out of an oval follicle.
271. Goose bumps on our skin are caused by pull of muscles
attached to hair follicles and make the hair upright.
272. The
color of our hair is also determined by the melanin, a pigment present in the
human body.
273. The human body contains 30 amazing hormones, which
regulates activities like sleep, body temperature, hunger, and managing stress
in times of crisis and so on.
274. A person growth like being tall or short is not
determined only by the genes. Growth hormone also is responsible for it.
275. The human body makes 2.5 million Red Blood Cells every
second or about 200 billion Red Blood Cells every day.
276. Arterial blood contains a lot of oxygen and nutrients
for the body whereas venous blood contains low oxygen level and nutrients.
277. Red Blood Cells are the only cells in the body that do
not have a nucleus.
278. On an average, the human growth hormone, which is
responsible for a person growth is produced at the rate of 500 microgram per
day at the age of twenty, 200 microgram per day at the age of fourty and 25
microgram per day at the age of eighty.
279. It is estimated that there are over 1,
000,000,000,000,000 connections in the human brain.
280. Human brain constitutes 60 % of white matter and 40 %
of grey matter.
281. The average length of the human brain is about 167 mm
and its average height is 93mm.
282. There are about 30 - 40 billion white blood cells
present in our body to fight against infective and foreign organisms.
283. All the blood in our body passes 400 times through
each kidney per day.
284. The human Liver consists of 100,000 tiny clusters
called lobules.
285. On an average, the human stomach holds about 2 liters
of contents.
286. The human sense of smell has the ability to identify
the chemical smell of an object in one part per trillion of air.
287. An average capillary is only 1mm.
288. On an average, 100, 000 to 1000, 000 chemical
reactions takes place in our brain.
289. Liver cells take several years to replace themselves.
290. The white part of our fingernail is called as Lunula.
291. We are more likely to catch cold from a person by
shaking his hand than from his sneeze.
292. The shoulder blade is connected to the body by means
of 15 different muscles and it is not attached to a single bone.
293. A healthy liver processes 720 liters of blood per day.
294. Plaque begins to form 6 hours after brushing our teeth.
295. Newborns will cry out without tears for the first
three to six weeks.
296. The Nervous system transmits messages to the brain at
the speed of 180 miles per hour.
297. Women have better sense of smell than men
298. The wax present inside the ear is made up of oil and
sweat.
299. The female body is capable of giving birth to 35
children in one lifetime.
300. The spinal cord, which controls over 10 billion nerve
cells, is less than two feet in length and its diameter is same as that of the
index finger.
301. In the middle of the day, our eyesight will be
sharper.
302. A newborn baby has more than 26 billion cells.
303. Inner ear is the main organ of balance.
304. Yawning brings more oxygen to the lungs.
305. Human speech is produced by the interaction of 72
muscles.
306. A New born baby loses about half of its nerve cells
before it is born.
307. A neglected child brain can be substantially smaller
than that of a healthy child.
308. On an average, the number of connections in the brain
increases from 50 trillion to 1 quadrillion in a newborn during his first month
of life.
309. On an average it takes about 13 days for a grey hair
to grow.
310. Healthy human hair emits sound.
311. The nerve cells present in the nose, allows us to
smell and regenerates through out ones life.
312. Reading aloud to children helps to stimulate brain
development.
313. A hair grows by 0.3 to 0.5 mm per day, 1 to 1.5 cm per
month and 12 to 15 cm per year.
314. Children lose an average of 90 hairs per day, which
increases to 120 by old age.
315. A childs ability to learn can increase or decrease by
25 % or more depending on whether the child grows up in a stimulating
environment.
316. On an average a persons head has 100, 000 to 150, 000
hair.
317. A single hair has the ability to support up to 100
grams of weight and the whole hair has the ability to support up to 12 tones of
weight.
318. The pigment of human hair is produced in the shaft of
hair beneath the skin.
319. The width of an average human brain is 140 mm.
320. It takes 5- 30 seconds to chew food.
321. Swallowing of the food takes about 10 seconds.
322. The enzyme in the stomach that breaks down alcohol is
produced less in men than women.
323. In a year on an average person sleeps for 122 days out
of 365 days.
324. It is impossible to tickle our selves.
325. In a human body, the small intestine is 21 feet and
the large intestine is 6 feet long.
326. For every 24 hours, in a healthy adult, more than a
gallon of water containing over an ounce of salt is absorbed from the intestine.
327. The right side of the human brain is responsible for
self-recognition.
328. Men listen with the left side of the brain and women
use both sides of the brain.
329. In a lifetime, the human kidneys clean over 1 million
gallons of blood.
330. Identical twins have identical DNA but not identical
fingerprints.
331. Babies recognize sounds while in mothers womb.
332. Human bone is as strong as steel but 50 times lighter
333. Bones make up only 14% of our weight
334. Seven out of ten people cross their left arm over
their right
335. Your foot contains 25% of all the bones within your
body.
336. Human eye is the only multifocus lens in the world
which can adjust in 2 milliseconds
337. Human brain is the most powerful computer which has
the processing speed of 3000+ Ghz
338. The gastric acid in your stomach is so powerful that
it is able to eat away an iron table in about 5 minutes.
339. sperm containing the xy chromosomes to become a male
can swim faster but not for as long as the female xx chromosomes.
340. The ears never stop growing through lifetime.
341. Do you know every human spent about half an hour as a
single cell.
...............
cool
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