How to determine the optimality (insufficiency, redundancy) of the mass of your weight? Detailed answer

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How to determine the optimality (insufficiency, redundancy) of the mass of your weight? Detailed answer

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How to determine the optimality (insufficiency, redundancy) of the mass of your weight?

To determine normal body weight, they usually use the formula proposed back in the 1824th century by the famous French anthropologist Paul Broca (1880-100): ideal weight in kilograms is equal to height in centimeters minus XNUMX.

Excess weight by 10-30 percent corresponds to the first degree of obesity, 30-50 percent - to the second; by 50100 percent - the third. Already at the first degree, some troubles begin to appear, and an excess of mass by one and a half to two times is considered to be a serious disease that is subject to mandatory treatment.

Recently, another indicator of optimal body weight is increasingly used - body mass index (BMI).

To determine BMI, you need to divide body weight in kilograms by the square of height, expressed in meters. If the resulting value falls in the range of 18,5-25, then the weight is normal; from 25 to 30 - overweight; over 30 - obesity. A BMI value below 18,5 corresponds to underweight.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Why do all planets look different?

The reason why the planets seem different to us is that each of them is made up of different substances. Despite the fact that they all revolve around the Sun and are part of the same solar system, their composition varies. Very little is known about what the planets are made of, and this is one of the questions that man hopes to answer with the help of space studies that have been carried out and are planned in the future.

Let's take a look at each of the planets and see what we know about their composition.

Mercury is a small mountain world. It has several dark areas and many craters, but there is no atmosphere or water in the notes. Venus is a white orb with hazy spots. It is almost completely covered with a layer of white clouds, which do not consist of water vapor, but of hydrochloric acid vapor. Beneath these clouds is the atmosphere of Venus, mostly composed of carbon dioxide, which is unbreathable. It absorbs solar heat like a blanket, so the temperature on the planet's surface reaches about 500 ° C, and because of this, there is no liquid water on Venus. Mars is called the red planet because of the color of its deserts. It is half the size of Earth and has a very thin layer of carbon dioxide atmosphere in which clouds form. No definite signs of life have been found on Mars. Maybe it's because it's very cold there.

Jupiter appears before us as a yellowish ball with colored bands of clouds swirling around it, and a giant red spot clearly visible against the clouds. Jupiter is a giant liquid ball of mostly hydrogen and helium that gets denser towards the center of the planet. Saturn is mostly liquid hydrogen and has several bright rings around it. They are made up of countless particles that move in their orbits around the planet like small moons.

There are also rings around Uranus, but they are much darker than the rings of Saturn. Neptune is a dim greenish planet, while Pluto is the smallest planet in the solar system. It has an elliptical orbit and therefore sometimes comes closer to the Sun than Neptune. Space exploration through satellites and robotic stations is helping scientists learn more about every element of our solar system.

Test your knowledge! Did you know...

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