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7 health myths that even doctors believe

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12/19/2018 | 18:44 | Joinfo.ua

In fact, there are a large number of medical myths. But Joinfo.ua will tell you about those that are not only a few complicate life people, but also do not bring any benefit.

The most common health myths

Each person saw a “map” of the language, which showed that each zone is responsible for the perception of different tastes - one sweet, another bitter, and the third acute. In fact, different parts of the tongue may respond to food a little faster or slower, but the difference is very small. You can even try it - pour a little sugar on different parts of your tongue and make sure that it feels the same everywhere.

Mantoux test

Remember how in childhood we were scared that you should never wet Mantu. It is believed that water can increase the injection site, as with tuberculosis. In fact, the injection is injected into the deeper layers of the skin, so water can not penetrate there. The Ministry of Health confirms that you can wet your mantle, but you can’t rub it with a towel or washcloth.

Have you often heard about the importance of drinking 8 glasses of water per day? So, experts say that it is impossible to calculate the norm. It depends not only on a person’s body weight, season, but also on physical activity. On average, a person needs from one and a half to two liters of water per day. Interestingly, this amount includes not only pure water, but also juices, tea, vegetables and fruits.

Medication

Antiviral medications do not help with acute respiratory viral infections or colds. Studies have shown that only a small amount of such medications helps with the treatment of type A flu, and even then only slightly.

Vision

There is a myth that reading in the dark or watching TV at close range leads to loss of vision. In fact, under such conditions, the mucous membrane of the eye becomes dry. Therefore, the eyes quickly get tired. But this negative effect ends.

Breakfast

Nutritionists often say that you must have breakfast. But this does not mean that you need to force yourself to eat in the morning. American scientists have proven that people who skip breakfast consume fewer calories per day. But if you woke up hungry, then you definitely need to eat food, this will help not overeat at lunch.

Seat posture

There is an opinion that sitting in a "foot by foot" position can harm your health. Allegedly, this causes a risk of varicose veins or even nerve damage. This result can only be achieved if you sit in such a pose motionless for several days. An exception is people who are at increased risk of blood clots. They really should not cross their legs.

We also invite you to learn about the main gym myths. You need to understand what needs to be done in the hall, and what actions should be avoided.

Myth 1. The body needs regular detox.

In order to remove unwanted substances and toxins from the body, we have an excretory system - and it perfectly copes with this task without any outside help.

Detoxification is really needed, but only in case of poisoning with poison, which the body is not able to neutralize on its own. A good example is botulinum toxin. This organic poison is produced by the bacteria Clostridium botulinum, which willingly reproduce, for example, in improperly prepared home canned food. But it’s not the cosmetologists in the salon who cleanse these poisons, but the doctors in the intensive care unit.

Myth 2. Cola helps with poisoning.

One of the most popular myths of recent times: for unexplained reasons from the point of view of common sense, the stake has become almost a panacea for all ills - in particular, a cure for poisoning. It is believed that it prevents dehydration, helps to restore strength and even has a disinfecting effect (in fact, of course not).

The main danger in food poisoning is really dehydration and loss of electrolytes: sodium, potassium and chlorine. But it is better to replenish supplies with the help of special solutions with a high concentration of sodium and other salts.

In the stake, the sodium content is scanty: 4 mg per 100 ml (in pharmaceuticals, the concentration is ten times higher), and sugar and caffeine stimulate the intestines and only increase the symptoms of poisoning.

Myth 3. Fasting is good for health.

According to some reports, interval fasting helps to lose weight, has a positive effect on heart health and even reduces the risk of cancer. But there is one problem: all these studies were performed on rats and mice, and not on humans.

The only proven effect of interval fasting for a person is weight loss, but it is neither better nor worse than the result of any other diet. There is so little data that starvation prevents diseases in people, and they are so unconvincing that in any clinical recommendations, advice to refuse food for health was never made.

At the same time, many people who have health difficulties should not be starving at all: this is especially true for patients with diabetes and hypertension.

Myth 4. Some foods help speed up metabolism.

Metabolism is a combination of chemical reactions that result in food being converted into energy. The body spends up to 70% of energy on the work of internal organs. This expense item is called the main, or basal, metabolism.

The rate of basal metabolism depends on many factors: gender, genetics, body type and age, and, unfortunately, it is impossible to influence it.

All that is in our power is to accelerate the consumption of those 30-50% of the energy that is spent during physical activity. But for weight loss, this is not enough: to reduce weight, you need to spend more than what comes with food (that is, control the amount of calories consumed), eat varied to get all the necessary vitamins and minerals, and monitor the level of hormones.

Myth 5. Antiviral drugs help with SARS.

About half of the acute viral infections are caused by rhinoviruses. The problem is that rhinoviruses have more than 160 strains and they mutate rapidly. It is difficult and unprofitable to develop a medicine for each strain - especially when you consider that without treatment a cold goes away in a maximum of 10 days. That is why there is no proven anti-ARVI drug. All you can do is improve your well-being.

Myth 6. Garlic protects against colds.

Does not protect. In a review of the Cochrane database - a reputable organization that evaluates the quality of research - there was only one more or less serious study in which dietary supplements with garlic slightly reduced the risk of contracting SARS. For far-reaching conclusions, this is clearly not enough.

Cure a cold with garlic also does not work. The same review convincingly showed that with acute respiratory viral infections it does not work better than placebo - that is, it does not reduce the time of the disease and does not affect its symptoms.

Myth 7. Multivitamins improve health.

There is no scientific evidence that taking multivitamins has a beneficial effect on the body. But there is evidence that it increases the risk of sudden death. Multivitamins do not help to live longer and do not improve cognitive abilities, do not prevent cancer and cardiovascular diseases. In general, doctors agree that a healthy person does not need vitamin supplements.

It is really necessary to take pills only for people with a diagnosed deficiency of a specific vitamin. The doctor should choose the dosage.

Myth 8. When the throat hurts, you can’t eat and drink cold.

It’s possible and even necessary, because cold food like ice cream reduces sore throat in both viral and bacterial infections.

The stereotype “ate ice cream - got sick” is also part of common cold mythology. Any cold is a viral or bacterial infection, which can be obtained only after contact with a sick person.

Myth 9. Immunomodulators increase immunity.

There are no drugs with proven effectiveness that can strengthen the immune system. Immunity is too complex to be influenced by a single medicine.

OTC immunostimulants should not be confused with immunomodulators, which are sold strictly according to the prescription. These potent drugs are prescribed as adjunctive therapy for very serious immunity problems, such as HIV infection. But even their effectiveness is still debated.

Myth 10. Honey is healthier than sugar.

In 100 g of honey, 82.12 g of sugars: 35.7 g of glucose, 40.94 g of fructose, 5.48 g falls on galactose, sucrose and maltose. From a nutritional point of view, honey is neither healthier nor harder than regular sugar.

The therapeutic properties of honey have been studied for a long time, but they still have not found a single disease that it really helps to cure. The maximum that honey is capable of is to slightly relieve cough in children older than 2 years and slightly accelerate the healing of minor burns and wounds on the skin and oral mucosa. All other indications are fictitious.

By the way, children under one year of age should not be given honey in any form (even as an external remedy) - in infants this can cause botulism.

Myth 11. Oxolinic ointment in the nose helps not to get sick during the cold season.

Alas. The lack of effectiveness of oxolinic ointment for the prevention of influenza and acute respiratory viral infections was recognized even in Russia. It is not in the list of recommended means of Rospotrebnadzor, nor in international recommendations.

Use oxolinic ointment to moisturize the mucous membranes and facilitate breathing is also not worth it. Ointment 99.75% consists of petroleum jelly. Vaseline sometimes gets into the lungs, where it can provoke a rare but dangerous disease - lipoid pneumonia.

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Watch the video: 7 Doctor Myths That You Believe (March 2020).