Is it true that a manual razor is 100 times dirtier than a bill?

Beards are a symbol of men, but most modern people, especially the easterners, do not have the habit of wearing beards, because they can give people a nasty feel. So the razor becomes a man's intimate partner, almost daily contact with him. But, gentlemen, what do you know about this little friend?

Claim 1,

Manual shaving, the more blades the better.

Early shaver can only carry single-layer blade, its shaving effect, comfort is poor, it is easy to cause skin damage. In 1971, the first multi-blade razors began to appear and became popular today. At present, the number of blades on a single blade can reach up to five levels. According to the propaganda of the razor, the more razor blade, the cleaner.

The truth

Excessive shaving can deepen the damage to the skin.

In the shaving process, the hair is engaged first after contact with the blade and is not immediately cut off. The meshed hair will be partially pulled out of the skin and will not be immediately retracted into the skin. Before hair completely retracted, the blade can be further cut hair, the formation of the so-called "lag cutting effect", have multiple razor blade can provide multiple lag the chance of cutting, make hair more thorough shave.

Increasing the number of blades on the one hand can increase the chance of "delayed cutting"; On the other hand, a tighter blade can reduce the uplift of the skin and relieve the discomfort of multiple blades. Therefore, theoretically increasing the number of blades can provide a deeper, more comfortable shaving experience.

However, "increasing the number of blades increases the likelihood of skin damage," says Jtiger. There is no such thing as a smooth, egg-like skin, and in fact human facial skin is bumpy. The extremely sharp blade is pressed against the rough surface and is bound to cause the skin to be cut and removed. This is why the skin looks smoother and brighter every time you shave.

"As the number of blades increases, the number of shaving times experienced on the skin surface after a single shave increases, increasing the damage to the skin," says Jtiger. In addition, because the previous blade will pull the hair, make hair skin tissue around the uplift, a blade cutting uplift part also increased after the possibility of further increase the damage rate of the skin. Once the surface of the skin is damaged and the protective barrier is lost, it provides a good opportunity for bacteria.

Claim 2

The razor is not clean and dirtier than the money.

If there is no rush clean razor, it will have oils, and the residue on the skin cell is treated as a source of nutrition supply, so the number of bacteria will be rapid growth, that is more than those of the money; In addition, the moisture of the razor is also a factor contributing to the bacteria, because the growth of the bacteria requires a humid environment.

The truth

This is true, the razor is a hotbed of bacteria.

This is a survey conducted by Taiwan's foundation in the past few years. They randomly selected 10 razors, and found that there were 100 million of them, a thousand times worse than many hands.

"Under the action of 100 million bacteria, if the bacteria infiltrate into a honeycombed subcutaneous fat layer, it can cause cellular tissue inflammation," experts said. This kind of cellular tissue inflammation is not as good as the general skin inflammation, the wound site can have the burning sensation and the tenderness is obvious, accompanied by edema, erythema. There are also symptoms of fever, chills, tiredness, headache or joint pain. When blood is examined, the white blood cells in the blood increase significantly. If it is not treated in time, when the lymph glands are enlarged, the bacteria have already invaded the blood, and in severe cases, it can cause sepsis and death.

Oscar-winning actor Tom Hanks has had to get a beard because he was infected with a bacterial infection in his shaving years, which caused his cell to become swollen and swollen.

Claim 3

People who don't shave often have higher mortality rates.

According to foreign media report was published by the American journal of epidemiology, said the researchers in the 20 years of research found that men don't often to shave, than men shave every day high risk of stroke, and even death are! The researchers said that while it was not possible to explain the reasons, it was estimated that the main reason was that people who did not shave often had poor living habits.

The truth

Correlation is not causation.

The study focused on the relationship between shaving frequency and total death, cardiovascular death, coronary heart disease and stroke. The study included 2438 men, aged 45 to 59, 20 years follow-up, the results in testosterone levels, insulin resistance, social factors, lifestyle, and coronary heart disease situation has made correction.

In a group with less shaving, the risk of all-cause mortality was 1.24, which means 1.24 times the risk, 1.30 for cardiovascular death and 1.68 for stroke. The researchers suggest that the differences may indeed be caused by confounding factors such as social factors and smoking, but there may also be a link to hormone levels.

"A poE" pointed out that "shaving" is not the real reason for any of the factors mentioned in this article, and it is more difficult to understand that shaving can reduce the risk. There are a lot of confounding factors, and of course the researchers took this issue into account and made some corrections. Statistical correlation is not causation.

Claim 4

The beard will get harder and harder.

A lot of people think that the beard is soft at the beginning, but the beard will become more and more and harder.

The truth

If it's true, bald people shave their heads every day.

At least for the time being, there is no evidence that "the beard will get harder and harder", but there is evidence that it will not, said the fruit shell expert and the medical master. Some people think that can make often shave beard more hard, more black, coarse, but this may be the end of the stubble, natural, is gradually thin end of the beard and shaved Hu Zixin long out a period of time is truncated stubble. In addition, it may be the age problem that many people grow up with the advantage of growing beards.

Health in the New York times to answer this question: "for the first time in the 1920 s, studies have confirmed that the cut hair won't accelerate its growth, followed by the research result emerge in endlessly. For now, there is no evidence or mechanism to suggest that hair follicles can grow faster in beards or genes, hormones and environment.

"If this rumor is true, then there will be no one who is bothered by baldness," said the fruit shell expert and organic chemistry expert qiu qiu. Men who shave every day will gradually become big beards, which is not the case.

The amount of hair is determined by the number of hair follicles, and cutting hair does not change the amount of hair follicles. In addition, long hair will appear softer, shorter and harder, which is caused by human illusion.

Four men can't shave.

1. Don't shave after eating.

As the stomach begins to digest after meals, the heart rate increases, blood flow increases, blood flows through the neck and the lower face of the face. It is easy to shave the skin, and the bleeding will increase.

2. The manual shaver is used before washing, and the electric shaver after washing face is wrong.

If you use a manual shaver, it's best to wet your face and shave it, because the beard is hard when it's dry and the blade is easy to get stuck in the stubble, which can hurt or scratch your face.

However, the principle of electric shaver is different from that of a blade. Electric shaver is the principle that USES electric motor to drive blade movement, and it will be cut off by the beard or hair of the razor mesh. In this case, it is better to shave the upright beard or hair in the dry state.

You can't shave immediately in the morning.

In the morning, he got up in a hurry to shave, and before the afternoon came, the stubble grew again. Because after a night of rest, the reproductive function is vigorous and the beard grows fast. When I get up, I shave, and soon I grow a beard.

After 20 minutes to half an hour, male hormones in the male body are less vigorous, and the growth rate of the beard declines, and then it will not grow again.

4. Don't shave before exercising.

Avoid shaving before and after exercise. Because the body will be sweating profusely at this time, stimulate the skin that just shaved the beard, produce burning feeling.