13 things that you are afraid for nothing

Many phobias and popular misconceptions surprisingly tenacious, although most of them are without any scientific basis. In some of them we've come to believe blindly in childhood, while others fall down on us as sensational news from sources you trust. But no matter what anyone said or written, you absolutely no reason to be afraid of these things.

1. To bring the eye to the nose and okoset forever

This is not true: his eyes fixed to the bridge is not only harmful but also very useful. Thus you train the muscles of the eyeball, shoot eye fatigue and improve blood circulation.

There is another version of this myth, which states that okoset possible, if at the moment when you squinted, you get hit on the head. He is closer to the truth: to earn a squint as a result of head injury is possible, but it does not matter in what position were your eyes at the moment of impact. blow himself thus should be much more banal Bonk.

2. Swallow gum and 7 years old to wear it in the stomach

It is not known where did the myth about seven years - most likely, it came up as a horror story for the children, so they do not swallow chewing gum. Basis cud really is not digested, but it does not mean that it sticks to the wall of the esophagus or stomach and stays with you for a long time. Like other indigestible things, it is rapidly excreted naturally. That swallowed chewing gum has led to serious problems, in particular intestinal blockage, you need to ingest it in batches.

3. Pumped in the gym, doing weights with

The term "siphon" is very subjective. Usually this fear girl first came into the room and was horrified to represent yourself in the place of professional athletes, they saw a photo on the Internet. Actually build a large amount of muscle mass - it's great work, which will require several years of special training and carefully calibrated power.

Moreover, even those athletes whose photos in magazines and spread the web, look so only during the competition, ie 1-2 times a year. At other times, their relief is much more modest. Through the ordinary power training 3 times a week, you would never imagine pump up biceps the size of a watermelon.

4. wet skin test

Watering place of the sample can be any number, but the rub, scratch and smear him what else is not recommended. A ban on contact with water was relevant when the response to tuberculosis was tested by applying the sample to a scratch on the skin. Mantoux test, as well as modern Diaskintest, involves injecting the drug into the skin, where the water does not leak.

5. Knuckles crunch and earn arthritis

The main damage that can bring the clicking finger joints - is resentment of others. There is no evidence that this habit leads to arthritis or other diseasesWill Joint Cracking Cause Osteoarthritis?. It is true that the benefits of this activity has not yet been identified. Moreover, the recorded cases of injury, when people are too fond of, jerking myself for fingers.

6. Turn into a villain, playing video games with violent

Influence of computer bloody mess Player highly exaggerated on the psyche. The maximum that was possible to fix researchersA longitudinal study of the association between violent video game play and aggression among adolescents. - it bursts of aggression in players in the game time and for a short time after its completion. However, there is no proven connection between love for Shooting and propensity towards violence in real life.

7. Light up while talking on the mobile at the gas station

This belief refers to a series of urban legends, in which confused cause and the surrounding circumstances. Indeed, several cases of fire at gas stations during the conversation was recorded on his cell phone, but these accidents occurred due to static electricity clothesCan Cell Phones Cause Fires at Gas Pump?. From the phone no sparks arise.

8. Kissing with an HIV-infected person

Immunodeficiency virus concentration in saliva is so small that the chance to pass it with a kiss to zero. There is only one way to become infected with HIV through kissing, if you in the mouth or on the lips has an open wound, that is, if there is a possibility of saliva media getting into your blood. Therefore, you can kiss, but the bite - do not.

9. To vaccinate themselves and their children

On this subject, it is broken a lot of copies, but on the side of the vaccination at least one indisputable fact: the benefits of vaccination is incomparably greater than the risk of possible complications. If you are still in doubt, read the detailed material about the benefits of vaccination and the issues that it raises.

10. Swallow a spider in a dream, zapolzshego in mouth

Let's start with the fact that the spider is unlikely to climb to your bed: you are in tossing and turning and can at any time to crush the intruder. Your mouth is also not so attractive to the spider place - for the sake of experiment, just try to blow on the spider and see how he does not like it. Finally, it is unlikely you all night sleeping with wide open mouth. But even if suddenly there will be an incredible night and into your mouth miraculously gets spider, it does not mean that you will become his swallow. You do not swallow in his sleep accidentally caught in the mouth of hair or feather from a pillow, why suddenly this has to happen with the spider?

11. Eat sausages GMO and get DNA kangaroo

Whatever you eat, it will not affect your DNA. Strictly speaking, any food with animal protein contains someone's DNA, and it does not matter whether the modified genes of its owner or not. The main part of the DNA is broken down in the gut, and the few that are not digested and enter the cells of other organs, it is split over several days. In the human genome at the same time anything other is not built.

12. Lose nerve cells, which can not be restored

At the heart of this confusion is the fact that nerve cells do not divide, but this does not mean that there is no way the replacement of dead units. thanks to neurogenesisNerve cells to regenerate. It originates in the human brain new nerve cells. In addition, the function of dead neurons assume the remaining nerve cells that form new connections and increase in size.

13. There are products with sodium glutamate

All proved negative effects from the use of sodium glutamate reduced to experiments on ratsA High Dietary Intake of Sodium Glutamate as Flavoring (Ajinomoto) Causes Gross Changes in Retinal Morphology and Function. , The daily diet of which one-fifth consisted of this substance. After six months of such a diet rats began to go blind. But as the amount of sodium glutamate in the human diet in several tens of times lower fear. If you do not eat this stuff spoons for breakfast, lunch and dinner, nothing will happen to your health.