The human body has 4 creatures 'horror', and what is the truth about them?

Do you know why the nose tweezers are a common handicap, or what is the use of eye tightening?

People tend to shy away from talking about body waste topics, such as rusty eyes, sweat - in part because of politeness, the rest is due to the creepy feeling when it comes to.

However, no matter how taboo, we still have to be exposed to the excretions of our own bodies every day. So instead of simply scrutinizing, please take a look at the article below to learn more about what almost everyone has but want to avoid this.

1. Umbilical deposits are actually .

Not everyone hates the umbilical dirt. The truth is that people with less belly hair will have less hate.

However, hate the dirt on the navel is not as dirty as you think, because most of the fabric is from our shirt . The fibers stick to the belly hair, then fall into the navel during the movement.

The remaining components of hate include dust, dead skin, fat, protein, sweat, and even belly hair.

Although hate in the umbilical cord does not look good, it actually helps the navel area get cleaner, as this process will inadvertently retain the bacteria. And when it comes to scrubbing in the bathroom, it can be said that your navel will be cleanest at that time.

2. The difference in earwax of each person

Human earwax is divided into two types: wet or dry . What kind of earwax a person has is determined by the gene. Just change a letter G to A in the genetic code: from GBCC11 to ABCC11 , the sebaceous glands will produce dry earwax and vice versa.

Human earwax is divided into two types: wet or dry.

Although different in stickiness, both types of earwax are generally lubricant, preventing insects from crawling into the ear canal, and some antibacterial effects.

One thing little is known is that the earwax is used to make the first lip balm thanks to its lubricating properties.

3. Sweat is not simply a cooling function

According to what we have learned, when the body temperature rises, the body releases sweat to cool down through evaporation.

Sweat also secreted at times when we felt scared, ashamed, worried .

It is true but not enough, because sweat is also released at times when we feel scared, embarrassed, worried, or in pain.

In sweat, apart from the main component of water, there are ammonia, sugar, protein, trace elements . and especially odor-causing molecules.

With the different emotions a person experiences, the scent in their sweat is also different. We can indirectly know the feelings of others only through their sweat smell.

In an experiment, psychologists gave 10 men a look at videos that could be frightening or scary, then sample their sweat.

Different emotions, the scent in sweat is also different.

Next, 36 women were smelling the smell of sweat and anticipating its owner. As a result, the women who smelled through the pattern of sweat secreted in fear also showed fear on their faces, and similarly to the disgusting emotions, though they did not know the model of sweat experienced before. over what.

Therefore, sweat is not only for cooling, but it is also a tool to convey our secret feelings to people around us.

4. Pinching eyes (rusting eyes) helps protect "soul windows"

Every morning waking up, one of our familiar cleaning steps is to get the rust . But why did the yellow lumps appear so? What effect do they have or just make you look ugly and ugly in the eyes of the opposite person?

Rust eyes are created from the outer layer of tear film.

First of all, we need to know the rust of eyes produced from the outer layer of tear film. This membrane consists of three parts.

The first is the glycocalyx layer, which is directly coated on the cornea and is effective in absorbing water. The second layer covered with glycocalyx is a tear solution with a water-based component. The thickness of this layer is only 0.4 microns equal to that of a spider silk, which has a lubricating and anti-infection effect.

The outermost layer is also the layer of jig, which contains an oil called meibum, which consists of fatty acids and cholesterol.

Meibum is a hydrophobic substance , thus keeping the inner tear layer from evaporating too quickly or continuously flowing out. According to one study, losing the meibum layer will make the eye dry 17 times faster than normal.

Sleep relaxes muscles leading to meibum secretions more release than at awake.

Meibum plays an important role in moisturizing the eyes, and at normal human body temperature it is in colorless liquid. However, when the temperature drops a bit when people go to sleep, meibum exceeds the freezing point so it turns into a solid that we call jealousy .

According to Australian ophthalmologist Robert G. Linton, sleep relaxes muscles leading to more release of meibum glands than at waking, which causes us to be able to light up every morning. see the amount of stuffing quite close around the eyes.