How does our diet affect us? Detailed answer

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How does our diet affect us? Detailed answer

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How does our diet affect us?

The changes that have taken place in the diet of people over the past 60 years have become, according to British researchers, one of the reasons for the increase in the number of mental illnesses in the world.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

Who Invented Zero?

You probably don't know that zero is an invented concept. This is one of the greatest achievements of mankind, this is a whole theory that has influenced the history of mankind, because it has made a great contribution to the development of higher mathematics.

Until the 2th century, the number system used in Europe was Roman, invented about 10 millennia ago. The Roman system was very complex. It is based on ten. The "X" sign is 100. The letter "C" means 1000, "M" - 1, "I" - 5, "V" - 50, "L" - 500, "D" - 4. 5 is denoted as "IV" , i.e. one less than 1648. To write down the number XNUMX, you need to use the following numbers: MDCXLVIII. In the Roman system, to read a number, you need to count, subtract, add.

Long before the new era, the inhabitants of India invented a more convenient system of counting. It was brought to Europe around 900 by Arab traders, which is why it is called the Indo-Arabic system. According to the Indo-Arabic system, all numbers were written with signs - 1, 2, 3, 4, 5, 6, 7, 8, 9 and zero. The numbers included in the numbers written in this system had different meanings depending on the place where they stood. We know that the number 10 means 1 ten, because the unit is written in place of tens, and zero shows that the place of units is free, there are no units.

The number 40 means that there are 4 tens, there are no units. It can be said in another way that there are 40 units in this number. Zero indicates that the number 4 is in place of tens. The Romans didn't have a zero in their system. To write 205, they did it like this: "CCV". They did not use the value of the place where the digit stands. In the Hindu-Arabic system, we write 205 by putting 2 in the hundreds place, zero in the tens place, 5 in the units place. 2 shows that hundreds are 2, zero shows no tens, and units - 5.

We needed ways to indicate the significance of each digit in a number. The invention of zero made this possible. They began to use words and icons showing the meaning of the place where the number is located.

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Random news from the Archive

Growing new teeth 10.04.2021

Japanese researchers have developed an experimental technique for growing teeth. Now this technology is being tested on laboratory animals. The method of treatment with monoclonal antibodies is described. These antibodies cause the body to grow new teeth.

As part of the study, it was possible to fix that blocking a gene called USAG-1 leads to an increase in the activity of bone morphogenetic protein. These molecules regulate the growth of various organs and tissues, including teeth.

However, this technology has several nuances. The fact is that the morphogenetic protein controls the development of a huge number of human organs. Interference with its work can cause many serious side effects.

During the experiments, the team tested a number of different monoclonal antibodies that alter the ability of USAG-1 to interact with bone morphogenetic protein. Fortunately, the researchers found a specific antibody that didn't cause side effects.

After that, the method was tested on animals. In this way, the team was able to stimulate tooth growth in laboratory mice. Subsequent experiments on ferrets yielded successful results.

Interestingly, ferret teeth are more like human teeth. Therefore, the success of research on these animals gives hope that the results of experiments with humans will also justify themselves.

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