New discoveries about the human body (Part 2)

In our world there are countless strange things that people have not yet discovered, including things that belong to people. By the end of the first decade of the 21st century, America's Natural Science Information Network (MNN) introduced the latest discoveries as well as the typical scientific achievements that humans have achieved in the process of 'upgrading. 'Human body, especially achievements in the area of ​​biomedical healing and beauty.

Numerous strange things about the human body

A human brain cell can store 5 times the amount of information that Wikipedi Open Encyclopedia a. Through research, scientists also discovered many interesting things about the brain. In the early 80s, neurologist Marian Diamond of the University of California (USA) analyzed a number of slices taken from the upper lobe of the skull and Einstein's prefrontal cortex and found that the percentage of cells Buffers on Einstein's neurons are larger than normal ones. Another special case, after studying the brains of Mrs. Hendrikje van Andel-Schipper (Netherlands) - who died at the age of 115 in August 2008, experts at Groningen Medical University discovered the number. The amount of brain cells is equivalent to cells in the brain of people aged 60-80.

The nerve impulses of the brain travel at 170 miles per hour (about 270 km / h), higher than the speed of new cars and thanks to such fast speeds that the body quickly recognizes signal pain when injured.The human brain produces energy like a 10W light bulb , works both at night and at night, using 20% ​​of oxygen enters the body through the bloodstream. Although it accounts for only 2% of body weight, the brain is a very consuming part of oxygen and is the most vulnerable part of oxygen depletion, so deep breathing enhances the health of the brain. In logic, when people sleep, the brain rests, but in fact the brain does more work, so that people have dreams, even there are many complicated dreams that so far science has not yet Walls out. Although the brain is the operating center, perceiving external effects, the brain itself has no pain receptors, so it does not feel painful. The brain is a soft part with many colors but mostly gray , 80% is fluid so providing enough water for the body plays an important role, helping the brain to be healthy and working well.

- Within 30 minutes, our body can heat enough to boil half a gallon of water (2.27 liters).

- Blonde people have more hair than black haired people. According to new findings, hair color determines the amount of hair. On average, a black-haired person has about 100,000 hair pins, a blond has 140,000 hair pins. Facial hair grows faster than other hairs on the body. Men who do not shave their beards will grow up to 30 feet (over 9 meters) throughout their life, losing 60-100 hairs per day on average. Hair is less than half the size of a woman's hair. gender and a male hair will pull a weight of 3.5 ounces (100g), the life of a hair from 3-7 years.

- Most babies are born with blue eyes.

- Sneezing has a wind speed of 100 miles / hour (160km / hour).

- Acid stomach is so strong that it can "liquefy" a blade.

- The largest part of human organs is the small intestine.

- Right-handed people have a longer life span than left-handed people up to 9 years. However, left-handed people are smarter. That is the conclusion of the latest study conducted by Montpellier's Institute for Evolutionary Science Research in France. According to this study, the left-handed group exists because of the evolutionary advantage. At the same time, the right-handers of the left-handed people are also very flexible, even the two hands are equally flexible. If both parents have left-handed parents, the proportion of children born will be left-handed up to 50%, in families with both right-handed parents, the proportion of left-handed children is only 2%.

- The fastest growing nail is the middle finger.

- The eggs of a woman's body are the largest cell and the sperm is the smallest cell in the body.

- Newborns have up to 300 different bones while adults only have 206 bones.

- When moving, our bodies use up to 200 different organs for one step.

- Human feet can produce 1 pint (0.47 liters) of sweat every day.

- Every 27 days, human skin changes once, over 90% of diseases that people suffer from stress. Very diverse, such as work pressure stress, marriage, love, family burdens, because of being inferior to friends, because of competition in the workplace .

Neurons have the function of storing memories of time in the brain.

Advances in the field of surgery and transplantation

- In 1954, the first successful kidney transplant for Richard Herrick, 23, donated kidney to his twin brother Ronald. They were identical genetically identical twins, so there was no problem of elimination.

- 1966: The first successful pancreas transplant

- 1967: Successfully performed two heart and liver surgeries.

- 1983: Successfully performed lung surgery.

- 1998: Successful surgery connected hands.

- 2005: Surgery to partially implant for patients successfully.

- 2008: The first successful practice of an entire implant for humans. It was an operation performed by experts at the University of Munich, Germany, successfully grafting two arms to Mr. Karl Merk, 54, who lost both hands in an accident at the age of six. Only two months after the surgery, Karl Merk was able to open the door himself and turn off the light with his new hands. Also in 2008, the surgery to successfully implant the trachea using the patient's own stem cells, put a " scaffold " of the trachea, which is a part of the donor combined with a boy's stem cells. The baby has a respiratory illness. The surgery performed at Great Ormond Street Hospital in London (UK) on March 15, 2010. After surgery, patients can breathe and talk normally. This is also the first time in human history to successfully perform an organ transplant using the patient's own stem cells.