Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

Why is sunlight good for health? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Comments on the article Comments on the article

Did you know?

Why is sunlight good for health?

Every person instinctively feels that it is better to live in the light. But did you know it's scientifically proven? Let's look at what happens when we expose our body to the sun's rays. Sunlight destroys certain fungi and bacteria that take up residence in the skin. Medicine has adopted these properties of sunlight.

Another medical aspect is that when exposed to sunlight, white blood cells (phagocytes) become more active. These cells help in preventing disease. When light hits the skin, substances enter the bloodstream that give muscle tone. Tension is created in the muscles, and they work better. Solar energy recharges our nervous system. We feel cheerful and want to move.

It makes sense that our energy always finds an outlet when we play ball, do gymnastics, or swim. We have a desire to move more, because the sun strengthens the nervous system. The sun also has a specific effect - it creates the so-called "solar vitamins". Ultraviolet light converts ergosterone, a substance found in the skin, into a vitamin D. It's called the "sunshine vitamin". We can say that being in the sun is like taking a teaspoon of medicine every five minutes.

But we must not forget that it is not harmless from a medical point of view! We must be careful about sunbathing, as required by the medical prescription. Sunbathing raises blood pressure. Prolonged exposure to the sun can damage people with heart and lung problems. But for a short time, almost anyone can expose themselves to the sun's rays.

If you have begun to sunbathe, it is recommended to open the sun first 1/5 of the body for 5 minutes. The next day, expose another 1/5 of your body to the sun and increase your sun exposure by another 5 minutes. etc. Your doctor can give you good advice on how to benefit from and without health risks to use sunlight.

Author: Likum A.

 Random interesting fact from the Great Encyclopedia:

Where do sharks live?

There are over 150 varieties of sharks. All of them, except for one species, live in sea water. In Central America, there is Lake Nicaragua, where the freshwater shark lives. Sharks do not live in one place, but swim hundreds of miles in search of prey.

Most large sharks can mostly be found in the open sea at the surface of the water. But there are also those that are found deep at the ocean floor. Smaller sharks usually live near coasts and can be found in most seas where the climate is warm and temperate. Many consider sharks to be very dangerous.

In fact, there are dangerous sharks, and there are harmless ones. For example, the sharks that often follow ships are harmless "scavengers" that pick up leftover food from ships. These sharks are not afraid of even small fish. In the same way, some very large sharks are not dangerous if they are not attacked. One such shark is the whale shark. It can be found in the Mediterranean Sea, in the Pacific Ocean and the Caribbean Sea near Florida. Its length sometimes exceeds 11 meters, and its weight is 13 tons.

The giant shark is another one of the "safe" big sharks. This is the largest fish in the North Atlantic, its length is more than 13 meters. She loves to soak up the sun with her back out of the water. But the most terrible of all fish is the giant white shark, sometimes reaching a length of 12 meters. She definitely attacks people.

 Test your knowledge! Did you know...

▪ What role did Johannes Gutenberg play in the development of printing?

▪ What do parrots say?

▪ What accident led to the invention of Viagra?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

High-speed Internet between the Earth and the Moon 23.03.2022

Startup company Aquarian Spac has received seed funding to deploy a high-speed communications network on the moon.

Above Earth orbit, current communication relies on technology from the 1960s, making downloading lunar and space data an extremely slow process. Moreover, the lack of high-speed communication will create a serious obstacle to lunar operations and future exploration of Mars.

Experts hope the Solnet system will help improve communications over Earth orbit, which John Rotondo, the startup's CTO, says is not enough to handle the growing number of proposed missions to the moon. Data is planned to be transmitted at a speed of 100 megabits per second. Solnet wants to launch in 2024.

Rotondo also added that to ensure continuous coverage of the South Pole, the company intends to install a second satellite in 2025, but has not yet entered into an agreement to launch any of them.

Aquarian Space is currently conducting technical reviews with several commercial vendors for NASA's CLPS mission, other U.S. commercial lunar explorers, and international lunar missions to provide uninterrupted data and communications services by 2024. Customers, for their part, do not need to change or upgrade technology to integrate with the Aquarian network, making this a very simple and affordable solution.

“By 2030, we will have about 200 people creating a multibillion-dollar lunar economy. But this will not happen without a reliable connection between the Earth and the Moon. Solnet is designed to solve this situation,” concluded Tim Draper, founder and managing partner of Draper Associates .

Other interesting news:

▪ Philips key019 keychain camcoder

▪ Skyscraper with wind turbines

▪ Discovered a new way to preserve vitamins in food

▪ The firmware of the multimedia system improves the level of sound insulation of the car

▪ Miniature 868MHz radio module with built-in antenna

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ site section Color and music installations. Selection of articles

▪ article by Walter Scott. Famous aphorisms

▪ article Soldiers of which countries staged a truce at the front and celebrated Christmas together? Detailed answer

▪ article Practical acquaintance with a digital microcircuit. Radio - for beginners

▪ article Sinusoidal generator on the LM386 chip. Encyclopedia of radio electronics and electrical engineering

▪ article Boost voltage converter, 5-9/9-12 volts. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024