Incredible facts about the human body. Organism's functions
We do not always like to talk about them, but everyone deals with the functions of the body every day. Whether we go to work or have a rest at home, life inside of us, full of secrets and very interesting facts, is constantly bubbling inside us.
Here are a few facts about involuntary, sometimes unpleasant actions of our organs.
Speed at sneezing
When you sneeze, all the components from the sneeze take off at a speed of about 17 km per hour. That's why it's hard for you to keep your eyes open. Also this is an indisputable reason for covering your mouth during sneezing.
Interesting fact! For a long time, researchers and doctors believed that the speed of the sneeze is about 160 km per hour. However, this myth was destroyed in theory only recently by the researcher William Wells.
In practice, this fact was proved by Julian Than as a virologist from the Public Health Laboratory in Canada.
By the way, according to the results of these studies, it was concluded that coughing occurs at the same rate.
Blinking with the eyes
Women blink twice as much as men. This was noted on the basis of daily observations.
On average, all people blink about 13 times per minute.
For your information! Blinking in humans is a protective reflex that can respond to various irritations on the skin of eyelids, eyelashes, or due to light irritation. The instinct of closing the eye gap before it enters the eye is any sort of biological material.
Also, the eyeball is constantly washed with tear fluid, which helps remove foreign bodies.
The full bladder looks like a small soft ball. It's no wonder that you write to the bathroom when you feel the call of the wild. The capacity of the average bladder is about 400-800 ml of fluid, but most people feel the desire to retire to the bathroom for 250-300 ml.
Approximately 75% of human waste consists of water. And what we consider to be solid waste, in fact, is basically water. It is for this fact that we should be grateful to nature, for it is unlikely that someone would like to have pits and others instead of liquid waste.
- In the Roman sewer system, there was her own goddess-patroness Cloacina (Cloacina).
- In Rome in the fourth century, a tax on the sale of human waste was created and introduced (for what reason and for what is unknown).
- An ordinary person swallows a year (of course, without noticing) 2-3 small spiders.
- In space, you can not make a big belch.
- Astronauts in space often experience difficulties with digestion, so a compulsory attribute of the spacecraft toilet is a special capacity for vomit.
Legs with 500,000 sweat glands can produce more than 1 liter of sweat per day. With such a sweating, it's not surprising that your sneakers sometimes create a stench. In addition, men tend to have more active sweat glands than women.
For your information! Sweat is an aqueous saline solution with organic substances. Evaporation of sweat promotes thermoregulation. Also sweat transfers pheromones (products of external secretion) and many active substances.
The person has the greatest number of sweat glands on the palms (up to 600 per 1 sq. Cm).
The odor of sweat can be repulsive or attracting depending on the sex of the subject and the readiness for mating. The smell of sweat in a healthy person is not distinguishable. An expressive, characteristic smell appears only after a while, when the bacteria that live on the human body begin to multiply.
The volume and composition of sweat is very extensive and depends on the environment.
During a lifetime, you will produce as much saliva as you can fill two swimming pools. Saliva plays an important role in the beginning of the process of digestion of the mouth.
- Saliva is able to neutralize alkalis and acids.
- Controls salivation of the autonomic nervous system.
- The composition of saliva is regulated depending on the composition of the food.
- The production of saliva decreases with fright, dehydration or stress and generally stops during anesthesia and sleep.
- You will not be able to determine the taste of food until the saliva has saturated it.
- In the human saliva there is an antibacterial substance (lysozyme), which can help the rapid healing of abrasions and wounds.
- The boiling point of saliva is three times that of water.
- At the moment of our kisses, from the mouth to the mouth overflows an average of 60 mg of saliva with organic substances, fats, salts and bacteria. The bacterium enters during this action about 20 000, 95% of which are harmless.
Facts about flatulence
On average, a person produces flatulence (excess gas in the intestine) 14 times every day.
Even if you think that this is not worthy of a decent person, then nature will definitely disappoint you. As a result of digestive processes, the body produces gases that are left in the stomach, can cause pain. Therefore, it is better to release the gases.
- Gases in the intestine can ignite.
- The temperature of their formation is 37 degrees Celsius, and gases are emitted at a speed of 11 kilometers per hour.
- The concentration of gas is low, so they can not suffocate, even in an airtight chamber.
- The stench of the gases is given by hydrogen sulphide.
- Most of them are formed from air, which we can swallow. The bubbles of swallowed carbon dioxide and nitrogen are large enough that it can produce loud noises.
- The human body releases gases even after death.
- Beans cause extensive flatulence. The body is not able to digest some polysaccharides. Reaching the lower intestine, these complex carbohydrates begin to feed on bacteria, due to which a large number of gases are formed.
Facts about earwax
Earwax production is necessary for ear health. Many people consider earwax to be ugly, however, in fact it is a very important part of the defense system of your ear. It protects the tender ear from bacteria, fungi, dirt and even insects.
In addition, the earwax cleans and lubricates the ear canal.
- Earwax prevents itching in the ear.
- Frequent cleaning of earwax contributes to hearing impairment.
- Its smell depends on a person's nationality.
- The production of earwax provokes, including fear and stress.
Experts say that the ear candles with which many people clean their ears are dangerous. They can cause an ear burn, perforate the tympanic membrane and block the ear canal. Therefore, it is best to wash your ears under the shower with warm water.