The human body is much more magnificent than we can imagine. Before considering ourselves fragile creatures, we should realize the wonders we hold inside us. Here are some mind-boggling facts about how our body works.
1. 99,998 miles of blood vessels
If you slice the entire body of a child, take out all the blood vessels in his body and assemble them in a straight line, the line would be about 58,980 miles long. An adult’s vessels would be about 99,998 miles long. The circumference of the earth is taken as 24901 miles which means that vessels of the adult can go around the earth’s border more than 4 times.
2. Stars in the galaxy versus your body cells
There are 402 billion stars in our galaxy. This seems a great number but just compare it with the number of cells your body is made up of and you will be dumb-founded. You entire body constitutes of 75 trillion cells and each cell is factory in itself with hundreds of intricate molecules coordinating together to help perform your bodily functions efficiently and keep you alive. Considering this fact, you can well imagine how miraculous you are.
3. Nerve impulses or formula one cars
There are different neurons in your body which travel with different speeds, but the fastest one can travel up to 250 km/h which is equivalent to the top speed of a formula one car. Now, ponder upon the fact that the neuron is about 100 microns in length with no engine, tires or suspension but it performs the function with the same speed as the fastest car on the earth. What other fact you shall demand to consider yourself an incredible creation? The next time you see formula one racing, quickly bring into your mind the fact that there are 1000 billion similar cars running in your body and working 24 hours without any rest or gap.
4. Beware of sneezing
The air from you sneeze can travel up to 100 miles an hour or more. This is 40 km/h grater then the speed of a cheetah when he is hunting. This is the reason you are advised to put a handkerchief on your mouth while sneezing.
5. Your brain is a 10 watt light bulb
The human brain generally uses about 200 kilocalories per day which is equivalent to 10 watts of power. Thus you can charge an iPhone with the power your brain generates daily. The cartoon picture of a light bulb above your head now may not seem impractical to you.
6. Shedding is unavoidable
Most people complain that their pet cats have caused them cough due to their hair shedding but one need to know that he himself sheds about 585,000 particles of skin daily. That works out to 1.5 pounds per year so the average person will shed about 102 pounds of skin by the time he reaches the age of seventy.
7. Long intestines
The coiled small intestine in your abdomen is four times as long as the average height of an adult. If it weren’t looped the way it has been, there would be a 17m watery, coiled structure hanging outside your body. Imagine the mess it will create. You have to look out for any thorns which may rupture your intestines.
8. The eye is a master act
You eye is an extraordinary machine containing such complex structures and mechanisms that will befuddle you if you study them theoretically. It comprises of more than 2 million operational parts which can process 36000 bits of information per hour. The human retina has about 100 million rods for black and white vision and 7 million cones for color vision. So, per eye, a rough estimate is; 100 megapixels for black and white and 7 megapixels for color.
9. Spacious lungs
The inner surface of the lungs can be stretched; they would take an area of 80 to 100 square meters which is about the size of half of the tennis court. This means you can play full court tennis by using your both lungs.
10. “Saliva pools”
Throughout your whole life, the amount of saliva you have could be used to fill up two standard sized swimming pools.
Sources: 1. http://www.social-consciousness.com/ 2. http://www.thehealthsite.com/ 3. http://health.howstuffworks.com/ 4. http://bsnprogram.com/ 5. en.wikipedia.org/wiki/Human_lung