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Fascinating facts about the human body

No wonder that so many of us take their body for granted. We take them everywhere. We were all there to complain about pain. It is known that people spend more than one million dollars to change the appearance of their bodies. Some, like the neuroscientist Randal Keone (19659002), want to end human dependence on bodies by creating computers into which our consciousness can be uploaded.

This overlooks what a beautiful, elegant machine the human body is. Its many subtleties, quirks and surprises. So let's break out the microscope and give the miraculous body a little more of its guilt.

0th The amazing data of a genome

In 2003, after three years of work, the International Project on Sequencing the Human Genome said they had completed ordering the data that would allow them to write a human genome. It was found that this was two years ahead of schedule. Why should it take five years for the amount of data to be written out in a human genome?

Well, a genome is a complete set of human DNA. As we all know, this is basically the code that is designed to recognize a certain person and their characteristics. Although certain features such as hair color, height, and the like make up only about 2% of DNA, the rest are more or less a normal human template. The code is usually divided into patterns of the letters U, G, A, C and T (CC, AT, TG, etc.). A single DNA genome contains 3.5 billion pairs of data to program a human. This means that after mapping by the International Human Genome Sequencing Project, they completed the translation of 100 encyclopedias ! You'd think almost no one would have written so much about them, even if Twitter had surfaced.

. 9 It is radioactive.

Part of the reason why people are radioactive is unintentional. The radioactive element strontium-90 tends to accumulate in the bones because the body thinks it is calcium. Relatively large amounts of it have been distributed around the world due to extensive nuclear weapons tests, but since the half-life is 29 years, the worst effects have passed. For many, the more pressing concerns are those who absorbed the material from such nuclear disasters as Fukushima in 2011.

The body generates radiation more directly via its nervous system. Every time you move an organ with your nerves, think, etc. that causes the splitting of potassium 40 atoms and releases gamma radiation. In an average person, approximately 10% of them leave the body (less in a heavier person). This means that you've slept with someone else for a lifetime to spend a few days in Denver or a similarly high city. This means that we are not radioactive enough to produce a lot of energy. If all the nerves in your brain were harvested for electrical energy, charging an iPhone would take about 2.85 days.

. 8 Looking with the ears

When you look someone in the eye, you see one of the least intuitive inventions of the body. When you see something, light first falls through the lens of an eye, then it falls on the retina in the back of the eyeball. When passing through the convex material of the lens, the light is refracted upside down onto the retina. What if the information gets to the back of the brain where the brain is located?

This is where the ear comes in. It is the vestibular nerve in the ear that connects your eyes to your balance center and corrects your eyesight for the benefit of the brain. This has some practical advantages that a direct connection of the retina to the brain would not offer. For example, this is why you can tilt your head at a 90 degree angle without making the world look crooked. This discovery led to the assumption that newborns with their nervous systems still growing together are actually turning the world upside down. So far, however, none of them have said anything like that.

. 7 It Shines

Sure, you've heard people with a certain mood or style shine, but that's a little more literal. In 2009, researchers Masaki Kobayashi, Daisuke Kikuchi and Hitoshi Okamura photographed the first known images of a glowing human, although the basic science of measuring biological photon reactions has been known since the 1960s. They placed five test subjects in a light-tight environment, took out a charge-coupled device camera and photographed them for seven hours. While the temperature remained constant, it turned out that the amount of light / photons that their bodies emitted changed over the course of the day.

This does not mean that you should hope for people who can save a lot of light bulbs in the near future. The amount of light is approximately 1/1000 of the amount of light that would be visible to the naked eye. Since the photon emission rate was found to be related to metabolism, Kobayashi suggested that the technique could be refined after further investigation to diagnose metabolic states. In recent years, some studies have been carried out with photon emissions to test the effectiveness of meditation . The results are reported to be promising but not conclusive.

. 6 New body parts at different rates

Everyone knows from lessons about the dangers of excess alcohol in teenage years that we only get one set of nerve cells that never refills. But what about the other organs? How long does it take to replace them?

Well, on the one hand, the exchange of the gastric mucosa takes only a few days, because the stomach acids are corrosive. Your skin cells are comparatively long-lasting with an average of three weeks. The liver cells endure for 150 days .

The longest-lasting cell that is replaced is bone cells. These last so long that your bones last an average of 10 years. In each cycle, however, they tend to grow a little thinner. For this reason, they are particularly vulnerable to older generations. The National Institute of Health estimates that approximately 50% of Americans over 50 have chronically weak bones.

. 5 Growth hormones can cause shrinkage

In the early 20th century, attempts to inject testosterone into growing men and estrogen into female animals began. The idea with women was that it would normalize their menstrual cycles and for men who weren't growing satisfactorily to get bigger. In the long run, the results would show that it was a misfire. The estrogen injections increased the breast cancer rate in women in the sixties and in men testosterone was able to backfire more quickly: your pituitary glands closed because the body was already filled with testosterone, no growth.

By far the best known recipient of this misguided treatment was Rainbow Connection and A Star is Born songwriter Paul Williams . Since his father was over two meters tall, he thought that the fact that Paul was only three meters tall in fifth grade was a problem and started therapy. Williams said it stopped growing his bones and sent him to puberty at the age of 10. Why Metals Are Needed

It is common to indicate heavy metal content on a nutrition label, but why do we need copper, zinc, or iron? Well, we need copper to control the heart rate and produce all types of cell tissue, from bones to heart cells. Zinc is used for cell division and to dissolve carbohydrates for heat and other forms of energy. Iron is also used in metabolism, but also contributes to oxygen transfer to the cells.

The amounts of metal in a body vary considerably and can be surprisingly high in some cases. An average adult has only about 50-80 milligrams of copper in them, barely more than 2% of an ounce. In contrast, it is often said that an average adult has enough iron in them to make a three-inch nail. Let us hope that someone says that you have one of them in you.

. 3 Cool slowly over the decades

Of all the items on this list, this is probably the best news. In 1851, the standard temperature for a healthy adult male body was set at 98.6 ° ° F. Since then, studies such as the 2019 by Dr. Julie Parsonnet from Stanford University of 677,000 measurements showed that the average male temperature had dropped to 97.9 ° °. It hadn't been a quick drop. The average was around 0.05 degrees per decade. Women came in around 97.3 ° F.

According to Parsonnet, the reason for this is not due to a lack of activity by most people. This is due to the fact that with the adoption of healthier living habits and the improvement of antibiotics, the number of people whose immune system constantly fights against colds and rivers and at the same time remains functional has decreased. Not to mention the fact that more and more people live in houses with reliable temperature control that more people's bodies no longer need inflammation to stay active. Who should say if it does not turn out in the next century that the optimal human temperature is one or two degrees lower?

. 2 Calorie Counting

Well, admittedly this is a pretty gruesome entry for this list. In April 2017, historian James Cole from the University of Brighton examined cannibalistic practices on ancient tribes to determine whether they were performed for ritual purposes or for survival. To this end, he decided to determine the fat and calorie content of the human body to determine whether it would provide an adequate amount of food compared to the available prey. He concluded that an average adult male human body weighing 145 pounds contains approximately 125,000 calories. Since the generally accepted amount of calories a person needs in a day is around 2,000, this means that a human body feeds another person for a month and a family of four for just over a week, as we did in the previous entry experienced A tougher life certainly meant that people burned calories faster. A deer from that period would provide approximately 160,000 calories at a lower risk, which led Cole to conclude that humans were impractical as a food source and cannibalism was therefore more religious or militaristic.

Cole went deep in analyzing a body's calorie count. For example, a 1-pound heart delivered 650 calories. The liver is 2,569. The lungs together have 1,596 calories. Haut offers about 10,280 ; Bones 25,330. The zombies' delicacy, the brain, delivers 2,700 calories. Hopefully no TopTenz reader will ever have to put this information into practice.

. 1 Own Drugs

In some ways everyone is a mobile drug laboratory. For example, dimethyltryptamine is a category 1 hallucinogenic drug that is often extracted from fungi. Of course, it also occurs in human cerebrospinal fluid and is associated with dreams. It is speculated that near-death experiences are related. Then there is the opiate pain reliever morphine, which experimentally showed in 2010 that the brain produces (not conclusive) tetrahydropapaveroline from the chemical .

In the late 1980s it was more firmly established that the body produces its own cannabinoids, particularly CB1 and CB2. In addition to the intoxicating effects, the National Academy of Science reported in 2006 that CB2 is used by the body to regulate bone growth. Since then, these cannabinoids have been found to be used to regulate a number of other physiological functions so in some cases it is better to rely on the body's cannabinoids than to consume more.

Dustin Koski also wrote A Tale of Magic Gone Wrong a novel about a village of fairies that turn into monsters.

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