There are many folk common sense about "health" and "nutrition", including "monosodium glutamate will make people sick", "sports drinks supplement electrolytes, so they are completely harmless" and so on. These common sense are in fact wrong. Let's follow 360 common sense to list some wrong health theories.
When shed nosebleed, should chin rise?
The only advantage of this method is that it will not drop blood on the clothes or the floor, but the bleeding will not stop. Instead, the blood will flow into the throat. In serious cases, it will even cause vomiting and suffocation. A better way to deal with it is to put a small cotton ball into the bleeding nostril, then gently press the nose wing, and lean the head forward, while an ice towel or wet towel around the neck can also help stop bleeding.
Can acid food cause gastric perforation?
It's a common horror tale for parents who want to stop their children from eating too many sodas and other messy sweets but are helpless. The stomach of human beings contains the acid of digesting food, so our stomach will not be hurt by the acid.
Shave off the armpit hair, sweat will flow less?
Shaving armpit hair has no effect on the production of sweat. On the contrary, after shaving armpit hair, armpit will leave sweat stains on clothes because the water discharged cannot be hidden in the hair. As long as you wash the armpit before the sweat breaks down, you don't have to worry about the problem of too heavy body odor. Instead, scraping the armpit hair may cause abscess of hair root.
It's better to keep the eggs in cold storage, or there will be Salmonella?
If so, the eggs will be sold in cold storage. This is actually because the number of Salmonella in the refrigerator is very small. However, it is easier to help the growth of Salmonella in the cold and hot environment than in the warm environment.
Therefore, if the refrigeration process from the store to the home is interrupted, it is better not to refrigerate the eggs when they are sold, and then put them in the refrigerator after they are bought home. This alternate environment of hot and cold should also be avoided when eating raw eggs.
Should you brush your teeth immediately after dinner?
Generally speaking, brushing your teeth immediately after eating is not a very recommended practice, because the acid in the food will erode the enamel, and brushing your teeth immediately at this time will only strengthen the acid damaging effect. Therefore, it is better to rinse your mouth. First, remove most of the acid in your mouth, and then brush off the food residue attached to your teeth about half an hour later.
Does vitamin supplement make you healthy?
Vitamin sounds very positive energy, a pill can provide all the substances to promote the health of the body. If so, after decades of research, researchers have not found out what the effects of vitamin supplements really are. In addition, some studies have found that excessive consumption of vitamins can also lead to an increased risk of multiple cancers. Undernourished people may benefit from supplements, but for most people, eat well.
Comb your hair 100 times a day for good health?
Too often combing will stimulate the sebaceous glands on the scalp. If you have oily hair, you should try to avoid combing, and dry hair will be smoother, brighter and tougher. Combing 100 times a day is especially recommended for people with long hair, and it should be done to the end of the hair. However, only comb made of natural mane can be used to comb the hair, otherwise, too frequent combing will bring more harm than benefit to the hair.
Is myocardial infarction a rich disease?
Wrong! Myocardial infarction is a disease of lower social and economic status. People with lower social status are more likely to get myocardial infarction than people with management class. On the one hand, because their living conditions are usually unhealthy, they don't eat enough nutrition, smoke very hard, and they seldom exercise; on the other hand, their stress resistance is relatively poor on average, and many people in charge of the class regard stress as a stimulating challenge.
But generally speaking, they have social security, so nothing unexpected will happen. But for people with very little social security, stress is usually a threat to life, and they can only do nothing in the face of pressure.
Cigarettes have a calming function?
Smoking has a relaxing effect for smokers, but it's not because nicotine really has a relaxing effect, but for people who depend on nicotine, as long as they get cigarettes, they can suppress the trance phenomenon. When addicts resist cigarettes, the pressure they bear is never experienced by non-smokers.
Does walking take more energy than standing?
It sounds logical. After all, one is in the process of action, and the other is doing nothing. But why is it so tiring to stand up? Standing is not more comfortable than sitting, because when standing, the legs are always bearing the weight of the body. On the contrary, when walking, each step can make the other foot relax.
Blood sweet people are more likely to be bitten by mosquitoes?
Mosquitoes can't smell blood at all! But they have amazing thermal response, even the difference of 0.05 ℃ can be detected, so it's hard to find a delicious "hot blood molecule" in summer dusk. They can easily find the thermal image that makes them salivate for three feet.
The carbon dioxide and water vapor in the air we exhale will attract mosquitoes. In addition, only those females that need blood protein to make eggs will bite. After laying eggs, they will not bite.
Is the toilet a very unsanitary place?
Toilets that are often washed with water are actually much cleaner than people's stereotype. Instead, scientists who are engaged in the research of family bacteria have made a shocking discovery that there are a lot of bacteria on the surface and inside of computer keyboards unexpectedly. Most of the bacteria in the house are hidden in the drain pipe on the inner wall of the refrigerator, and even the amount of bacteria on the dishcloth bred by the same bacteria can't match the amount of bacteria here.
Wear thicker, or you'll catch a cold?
The decrease of body temperature is not the cause of cold, but the key reason is the infection of cold virus. At present, there is no evidence that hair will get sick if it is not dried. However, there is some evidence to explain why we are more likely to catch cold in winter, because we spend a lot of time in closed rooms, so it is easier to spread the cold virus with others.