Amazing facts about human body.
Look around your house or car at all the amazing inventions that have come along in the past few years: iPods and iPads, GPS devices, satellite TV.., All these technological toys are like Stone-Age tools compared to the amazing wonders of the human body.
The human body is even more impressive and magnificent than you can imagine.
When our body works, we do not feel, or even notice it is doing anything special, however, it is.
Here are some surprising facts about the human body :
The body rebuilds itself :
In the few seconds that you will read these words, there are approximately 50 million cells in your body that are dead and will be replaced with new ones. The skin needs one month to be completely renewed and the lining of the stomach is renewed in less than five days while the liver needs six weeks to replace the body with a new one. Most cells of the body will be replaced by a whole new one within years, but there are cells in the body that are not constantly renewed, such as bone cells, heart, and some brain cells, so these parts must be carefully treated.
Speed of nerve signals :
The speed of the nerve impulses varies from and to the brain by different types, but the faster type can start at speeds of up to 400 kilometers per hour. In fact, this is manifested when a person is exposed to a situation where he needs a quick response, High The speed of these large impulses helps to move the matter to that part by moving away from the source of damage quickly .
body cells :
There are more than 75 trillion cells in the human body, this means that your body has more cells than all the stars in the entire 40 billion star galaxy.
The human eye and the vision of the past :
The human eye is very sensitive, and it is able to feel as little light as possible. If you are guided on a clear night to the starred Andromeda group, you will notice a slight light and your vision of this light, you are looking at the farthest point can human see without technology (Andromeda is the galaxy nearest our galaxy The Milky Way Yet it is about 2.5 million light years away) when those photons coming from there began there was no human on earth. so you were looking at an unimaginable distance you were looking at 2.5 million years ago.
Skin cell loss :
When you open the window of the house and enter a simple beam of sunlight you may notice the huge amount of dust that is stuck in the air and sudden in this matter is that most of what you see are dead skin cells falling from our bodies,human loses an average of 600 thousand atoms of skin every hour Is equivalent to more than half a kilogram each year and at this rate the human 71-year-old has lost about 50 kg of skin.
Appendix :
The appendage has long been considered an insignificant part of the human body, but recently been discovered it important for bacteria that helps in our digestion process, which bacteria use to rest and move away from excessive gastric activity during digestion.
Number of bones :
The adult has a smaller number of bones than children. The baby's birth begins with 350 bones. During all his life, most of these bones are joined together to complete this integration. In adulthood, 206 adults only exist in the hands and feet.
The five senses :
Human has more than five senses, to make it sure put your hand near a source of heat, and you will not find any sense of the five senses telling you that the source will burn you but you feel that heat due to heat sensors in the skin as well as the pain you feel through the senses other than the five senses as well as if I turned upside down What senses will tell you that?
This is what is known as reception or deep sensory perception - a sense that enables you to know where parts of your body are for each other, unleash your mind and discover that you can not use your eyes.
Blood and heart :
The blood cells regenerate every four months. The blood cuts a large distance every day to nourish the entire body. To imagine this distance, we must know that the length of the capillaries in the human body is approximately 150000 kilometers, enough space to circulate around the world four times.
The red blood color is caused by the fact that the iron in it is surrounded by a group of hemoglobin atoms called porphyrin, which causes the color red and the color intensity depends on the amount of oxygen in those atoms (respiration).
The heart pumps 10,000 liters of blood daily through these capillaries. In one hour, it produces enough energy to lift a tonne of steel into the air.
Snoring :
At the age of 60 years, 40% of women and 60% of men will sleep with snoring sounds, and while the normal snoring sound is 60 decibels, which is normal for the human voice, we will find that the snoring rate at that age will rise to 80 decibels, Very equal to the severity of the sound of a stone drill as the level of 85 dB is dangerous to the human ear.
You actually don't touch anything :
The material consists of atoms and these atoms can not come into contact because of the strength of the dissonance resulting from the charges within their components. The closer the atoms are to each other, the greater these forces of dissonance, the greater the electromagnetic forces of the forces of gravity four billion times that you even though you may see in your eyes that you touched But in the womb you did not touch because atoms formed you and therefore nothing can come into contact and this principle speaks for everything and anything.
Hair :
The color of the hair can determine its density, the owners of blond hair, for example have the highest density of hair and estimated the average number of cavities from which the hair grows in the head by 100000, which can in turn produce 20 hair during human life. Yellow-haired people have 146 thousand cavities, while those with black hair have 110,000 and those with red hair are less dense at only 86,000 cavities.
Do you know your real age?
Your physical life has not actually started since your birth, but it started in the mother egg. It is a single cell of 0.2 millimeters, so we can assume that the physical presence begins with the presence of your first half in that egg but the surprising thing is that it was formed when she was an embryo.The formation of DNA that came from your mother, could be considered as the very first moment of your existence. And it happened before your mother was born.
The nails :
The nails grow according to specific criteria. The hand nails grow more often than the toenails. The more you use your hand and grow in the hand you use in writing for example, the more the work, the longer fingers grow faster than the shorter ones, and generally the nails grow at 3 millimeters every month.
the brain :
Researchers determined the amount of energy the brain consumes from the total energy of the body by about 20%. It is thus easy to determine the amount of energy the brain uses by calculating the calories used by the brain every day and converting it to the equivalent amount. Some of them have determined the electric output of the brain by 20 watts. A sufficient amount to light a small lamp.
the brain has 100 billion nerve cells that die at a steady pace. It can accelerate with drugs and alcohol. It has been shown that the brain produces new cells every month. Rate of production of these cells.
Additional facts :
- You use 143 muscles when you frown and rage but your face needs 17 muscles just to smile.
- In every inch of skin there are 20 feet of capillaries, 1300 neurons, 3 million cells, 100 ethnic genes.
- The red blood cells produced inside the bones circulate around the body 250 thousand times the length of each cycle 100 thousand kilometers and return after 120 days to the bone marrow to die.
- The human nose may not be as sensitive as other animals, but it can still remember more than 50,000 different smells.
- The length of the small intestine is four or five times the length of the same person so it is concentrated in the abdominal cavity in the form of rings to consume less space than the area.
- The largest cell in the human body is the woman's egg and the smallest cell is the sperm of the man.
- The length of human DNA is 10 billion miles, equal the distance between Earth and Pluto back and forth.
Nice post!
thank you for reply.
Interesting facts! Keep up the good work!
Thank you for reading.
Interesting read. I enjoyed that.