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"Al-Ahsa today" – Al-Ahsa
The human body is of surprising complexity, that is why today even, at this time, scientists are discovering new facts about humans: the knowledge of a new member of the human body or a bacterium in the brain. According to Life Science, the top 9 new human discoveries in 2018 were classified as follows:
1 – a new member of the human body
With all that has been discovered and his knowledge of human anatomy, it is almost inconceivable for doctors to discover a new member these days. But in March of this year, researchers in New York and Philadelphia discovered a new member called Interstitial Fabric, a network of voids in liquid-filled tissues. The researchers discovered this network in connective tissue throughout the body, including under the skin's surface. The interstitial tissues lining the digestive system, lungs, urinary system and surrounding muscles.
2. Parents inherit a nuclear acid
It has always been believed that man inherited DNA exclusively from mothers. However, in November, a team of researchers published unprecedented results for a scientific study that revealed that, in rare cases, parents could also pass on DNA. The study found that 17 people from 3 different families inherited the DNA inherited from their father and mother. Mitochondria are present in all cells of the human body, with the exception of red blood cells and convert food molecules into ATP energy that nourishes the cells of the human body. If the results are convincing, the results will change scientists' understanding of DNA-inherited DNA and could lead to new ways to prevent the transmission of metastatic diseases, also known as mitochondrial diseases, said the researchers. .
3 – bacteria in the brain
Scientists have long believed that the human brain is a site of "sterilization", which means that it is free of bacteria and other germs. But in November, researchers presented the results of a study at a scientific conference confirming that they had found preliminary evidence of the existence of living microbes without harming the human brain. The researchers took high-resolution images of human brain tissue after death, showing bacteria in the tissue. Crucially, there was no evidence of brain disease, suggesting that the man might have a microbial in the brain, similar to what is present in his gut. However, additional safeguards are needed to rule out the possibility of post mortem contamination of brain samples, although research to date does not indicate contamination.
4 – plastic particles in human stool
There is what we call "microblastics", or small plastic particles, in all areas, from oceans to tap water, to marine organisms and soil. But in October, a team of Austrian researchers discovered a beautiful object in stool samples taken around the world. The study included 8 healthy people living in 8 different countries and each stool sample contained harmful plastic particles.
5. Wrinkles are a sign of heart disease
Wrinkles are more than a sign of aging, which can indicate a risk of heart disease. In August, French researchers presented a study in which people with many deep forehead wrinkles were more likely to die of heart disease than people of the same age who did not have wrinkles on their foreheads. The exact cause of this association between wrinkles and heart disease is unknown, but some factors leading to premature aging of the skin may also contribute to aging of the arteries.
6. Do not forget about 10,000 faces
Man can remember faces more than can be counted. A new study sought to determine the number of faces that a person can store in his memory. The number varied from person to person but averaged 5,000 to 10,000 in some cases. The researchers examined the participants' facial memory by showing images of people they knew personally, as well as famous people. Participants did not have to mention the name of the person who had seen his face, but they simply had to say they remembered that face. The researchers noted that their study did not stop the number of faces that humans could remember.
7 – genes help to dream
Why do we see dreams? This remains a mystery, but scientists are perhaps closer to understanding the human dream because in the month of August, Japanese researchers announced that two genes had been identified as necessary for the phase so-called rapid eye movement, Experiments. The researchers used Cresper to eliminate these genes, called Chrm 1 and Chrm 3, in mice. They found that rats that did not detect both genes did not exhibit rapid eye movements. Dreams have begun. The results have yet to be confirmed at the human level, but the researchers said that a better understanding of how the genes governing sleep would lead to the development of new treatments for certain sleep disorders and mental disorders.
8. Friends think the same way
If you want to know who your true friends are, you can invite them to a brain screening center, brain imaging work, and videos or clips. A study published in January shows that close friends generate the same brain activity in response to specific stimuli, such as random videos. In fact, when participants tested their brains by viewing unknown videos, researchers could accurately predict whether they were friends based on brain activity. The researchers found that close friends had similar reactions in the brain regions, related to emotions, attention and reasoning at a high level. But further studies should consider whether people choose friends who think like them or if friends can model themselves.
9. Silvie Distorts Appearance
A study published in March revealed that 12-inch face photos give the nose an appearance 30% larger than it actually is. On the other hand, the images taken at a distance of 5 meters did not distort the features of the face. The results are based on a mathematical model developed by researchers to examine the distorted effects of images taken at different angles and at different distances from the face. The researchers said they wanted people to realize that facial features did not look true or the same natural shape in Sylvese's images.
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