UNITED STATES (OBSERVATORY) – Milk strengthens bones, and coffee slows their growth. Consuming carrots allows you to improve your eyesight to such an extent that you can see at night. Organic foods are more nutritious and do not contain pesticides. A lot of chocolate causes acne. Do you still think that this is so? And very vain. Below – just ten myths about health, in which it’s time to stop believing.
Milk strengthens bones
Advertising does not cease to inspire us that every adult with normal lactose tolerance should drink about three glasses of milk per day (mainly to get calcium and vitamin D , which often enriches milk). However, numerous studies published in the Journal of Bone Mineral Research, JAMA Pediatrics, The Lancet and the British Medical Journal show that there is no significant relationship between eating more milk and fewer fractures of bones.
Organic products do not contain pesticides
First, organic food is not free of pesticides. Secondly, the lack of pesticides is not always good for the planet . Farmers growing organic products are allowed to use certain chemicals obtained in the most natural way, which, according to research, can affect the environment if not more, then certainly not less than their synthetic counterparts. In addition, scientists from the University of California at Berkeley (The University of California, Berkeley) found that pesticide levels for both organic and non-organic products at so low, that should not bother the user.
If the food falls to the floor, in 5 seconds nothing will happen to it
Alas, ah, the five-second rule is also a myth. According to Discovery.com, bacteria can contaminate food for milliseconds. Tests also show that moist foods cure more bacteria than dry ones, but in any case there is no “safe duration” in terms of the time that food can hold on the floor does not exist. On the other hand, the safety of sending to the stomach of what fell, directly depends on the purity of this very sex. Just remember this.
The use of chocolate causes acne
And here not. Within a month, writes JAMA, scientists have fed dozens of people with bars containing 10 times more chocolate than are contained in classic bars. At the same time, the control group they offered to eat bars that looked like chocolate, and they tasted like chocolate, but in fact they did not contain any chocolate at all. When the final tests dermatologists evaluated the condition of the skin of volunteers, it was found that there was no significant difference between the two groups. In other words, the appearance of acne, if the body is OK, chocolate does not affect.
Honey is better than refined sugar
A cereal bar with honey or fructose is not better for you than a usual sweet bar. At least because, reminds Business Insider, that sugars in natural products, such as fruits, and synthetic products, such as candies, are the same. “Scientists are surprised to learn about the” clear superiority “of honey, because there is a unanimous opinion that the biological effect of corn syrup is essentially the same as honey,” says BI professor Alan Levinovitz. So the problem here is that sweets and other products with refined sugars usually contain more sugar (and, therefore, more calories ) per serving.
Coffee delays growth
In fact, most studies do not show a correlation between caffeine intake and bone growth in children. In adults, however, researchers have seen that increasing caffeine intake may slightly limit calcium absorption. However, this effect, according to Smithsonian Magazine, is so small that only one tablespoon of milk can adequately compensate for the loss.
Sweets cause the same addiction as heroin
In his 2009 Fat Chance book, American endocrinologist Robert Lustig argues that sugar stimulates the brain’s reward system in the same way that tobacco, alcohol , cocaine, and even heroin, and therefore causes the same powerful addiction. Lustig quotes studies that show that areas of our brain that “shine” from a sweet reward are the same areas that come to excitement from many other pleasant pursuits, whether it’s a favorite cocktail in a bar or great sex . But with all this, however, it is important to consider that neuroimaging does not allow you to determine the degree of propensity to this or that action. That is, it’s definitely early to talk about sugar dependence in conjunction with heroin.
Carrots in large quantities help to see at night
Vitamin A is really the main nutrient that can be found in carrots. And yes, it is extremely useful for eye health, especially for people with poor eyesight. But, nevertheless, even if you eat a ton of carrots , it does not endow you with a super-night vision. It is supposed, writes Tech Insider, that this myth originated during the Second World War as part of British propaganda: allegedly under cover of carrots the government tried to hide the existence of radar technology, which allowed pilots to attack even at night.
Sugar – the cause of hyperactivity in children
Numerous scientific studies have tried, but failed to find convincing evidence of this correlation. Myth, writes IFL Science, originated in 1974, when Dr. William Crook (William Crook) wrote a letter to the American Academy of Pediatrics (American Academy of Pediatrics), which was later published in one of the popular print publications. “Only in the past three years I realized that sugar is the main cause of hyperactivity,” said Crook. And it’s all. The letter did not contain any scientific justification for the conclusions, which should have immediately cast doubt on it.
Pregnancy makes women more stupid
For the sake of justice, in this case, studies show mixed results. Some tests do fix cognitive changes during pregnancy, while others do not show any negative consequences. On the other hand, according to the Mayo Clinic, there is more scientific evidence that pregnancy makes women more organized and organized. And this has an evolutionary meaning – future mothers have to worry not only about themselves, but also about the child, who, for the time being, makes up with her a single whole, but still is an independent organism.