Did you think you know yourself so well that the secrets of your body simply don’t exist for you anymore? Well, you will be surprised to find out how little you actually know about yourself. Read the 50 pieces of information below and check your general knowledge yourself. You will find out, for sure, that your body is a universe that you didn’t even imagine could exist.
- People who smoke a pack of cigarettes a day practically drink a cup of tar a year.
- Humans are the only animals capable of drawing a straight line.
- A human’s DNA contains 80,000 genes.
- Just as fingerprints are unique, each person’s tongue print is different from the others.
- An adult has fewer bones in the body than a child. We start our life with 350 bones but, because certain bones join together during growth, at maturity we only have 206.
- Even though it is not as sensitive as a dog’s, the human nose can perceive up to 50,000 different smells.
- The digestive acids present in the human stomach are so strong that they can dissolve zinc and corrode steel. Fortunately for us, the cells in the gastric mucosa of the stomach are renewed in a maximum of 3-4 days, leaving no time for the acids to dissolve them.
- A human lung contains over 300,000 million capillaries. If this were put together, it would stretch over a distance of 2400 kilometers.
- A man’s testicles produce 10 million sperm every day – enough for him to repopulate the planet in just six months.
- Human bones are as durable as granite. A bone the size of a matchbox can withstand the pressure of a 9-ton block – four times more than concrete can withstand.
- The largest organ of the human body is the skin. It can cover, in the case of an adult, an area of 1.9 square meters. Also, during a man’s life, he loses up to 18 kilograms of dead skin.
- When he sleeps, a man grows on average by 8 millimeters, so that in the morning he returns to his initial height. The reason is simple… the gravitational force acting on the cartilages.
- A man consumes, on average, 50 tons of food and drinks about 50,000 liters of liquids throughout his life.
- The muscles of an eye move about 100,000 times a day. To imagine what this means, think that the equivalent of such an effort for the leg muscles means a route of 80 kilometers every day.
- In 30 minutes, the human body releases enough heat to boil 3.5 liters of water.
- A drop of blood needs only 30 seconds to make a complete circuit of the human body.
- The human eye perceives only 90% of the information it receives.
- The ovaries contain approximately half a million eggs. However, only 400 of them will have the opportunity to give birth to a new life.
- Each square centimeter of skin contains at least 32 million bacteria. Fortunately, most of them are harmless.
- The feet alone contain over 500,000 sweat glands, glands that can remove up to half a liter of sweat per day.
- The speed with which the air is eliminated during a sneeze is at least 160 kilometers per hour.
- During a lifetime, a human can produce up to 24,000 liters of saliva, enough to fill two Olympic swimming pools.
- A human can last up to 40 days without food, 6 days without water and 6 minutes without air. Also, he cannot normally last more than 11 days without sleeping.
- A child’s head weighs as much as a quarter of its body weight. At maturity, the head represents only one eighth of the body weight.
- Fingernails grow, on average, six times faster than toenails.
- Approximately 50,000 cells in your body have died and been replaced even as you read this article. Your skeleton is a new one every three months and you have a new skin every month.
- Each square centimeter of your skin contains 6 meters of blood vessels, 3.5 meters of nerves, 1300 nerve cells, 100 sweat glands and 3 million cells.
- To frown, you have to use 43 facial muscles. To smile you only need 17.
- Of the 206 bones of the human body, more than half of them are in the hands and feet.
- A human’s heart beats about 3 billion times during his life.
- The aorta is the largest blood vessel in the human body. In the case of an adult, it has the diameter of a garden hose. At the opposite pole are the capillaries. These are so thin that it takes 10 such vessels, placed next to each other, to equal the thickness of a strand of hair.
- Any person loses, on average, 100 hairs per day and over 10 billion particles of dead skin.
- The human eye is capable of distinguishing approximately 1 million different colors and obtaining more information than the most powerful telescope ever built.
- When you touch an object, the signal travels through the body, through the nerves, at over 200 kilometers per hour.
- A person breathes in and out about 23,000 times a day.
- The place where human hair grows the fastest is the beard. If it were not cut periodically, a beard could reach up to 10 meters in length.
- In the first month of life, a child learns so many things, that the synapses in his brain grow from 50 trillion to 1 quadrillion. If his body would develop at the same speed, the child would weigh 77 kilograms after only one month of life.
- An adult’s stomach can contain up to 1.5 liters of food.
- Nails and hair are made of the same substance: keratin.
- Big toes are some of the most important structures in our body. Thanks to these fingers, a man can keep his vertical position and maintain his balance.
- Men shorter than 1.28 meters and women shorter than 1.18 centimeters are considered dwarfs.
- Every human bends their fingers 25 million times in a lifetime.
- The size of a man’s heart is equal to the size of his own fist.
- The human brain generates more electrical impulses in one day than all the mobile phones in the world combined.
- In the body of each of us live bacteria whose total weight would reach the figure of 2 kilograms.
- The right lung always retains more air than the left.
- In the mouth alone, a person has up to 40,000 bacteria.
- At the moment of birth, a child’s brain contains about 14 billion cells, a number that does not increase until the end of life. After the age of 25, the human brain begins to lose up to 100,000 cells daily. After the age of 50, the human brain significantly reduces its volume.
- Women blink twice as often as men.
- The smallest cells in a man’s body are sperm
