What makes us wake up? Detailed answer

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

What makes us wake up? Detailed answer

Big encyclopedia for children and adults

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

Did you know?

What makes us wake up?

We all have sleep disorders at times. Sometimes we really want to sleep, but we just can't get to sleep. Sometimes we do not fall asleep for a long time or get up at dawn. And sometimes it seems to us that we could sleep and sleep, but this nasty alarm clock starts ringing, as luck would have it! What makes us wake up, scientists are not yet completely clear. Since there are two theories about this, let's look at them briefly. The first theory is that sleep and fatigue are phenomena of the same order. Nerve cells get tired because their energy supply is used up faster than it is replenished. Nerve cells can also become tired because waste products build up faster than they are eliminated from the body.

When we think, see, feel, in general, carry out any kind of mental activity, we expend energy. Therefore, the brain and other nerve centers need rest. Sleep erases our fatigue, and when we wake up, we feel rested and capable of further activity.

Some scientists believe that we actually fall asleep due to the fact that one of the nerve centers, called the vasomotor, which regulates the contraction and expansion of blood vessels, gets tired. This leads to the fact that the blood vessels partially block the blood supply - and we fall asleep. When this center restores the blood supply it needs, we wake up. Another theory of sleep and awakening interprets these phenomena quite differently.

According to this theory, we have a kind of "waking center" in the lower part of the brain. Our mental activity and emotions stimulate this center throughout the day, sending appropriate signals there. As long as these brain signals come to this center, we continue to be awake. When these signals stop, we fall asleep.

Now suppose that during sleep we wanted to eat, it became cold or, conversely, hot, or some strong feeling appeared in our soul, for example, a feeling of fear. In all these cases, the center of wakefulness is affected - and we wake up. But keep in mind that different people need different amounts of sleep. It depends on age, body condition, nature of work activity and even individual sleep habits. Adults need just enough sleep to wake up feeling rested and ready for a new day at work.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What revolves around what: the Earth around the Moon or vice versa?

Both. They revolve around each other.

The orbits of two celestial bodies have one common center of mass, located about 1600 km deep from the Earth's surface, so that the Earth makes three different rotations: around its own axis, around the Sun and around this point.

Confused? Dont be upset. Even Newton himself said that thinking about the movement of the moon made his head swell.

Test your knowledge! Did you know...

▪ How hot is the sun?

▪ How many types of insects exist in nature?

▪ How do the Swedes themselves call the buffet and the wall?

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

There can be exits from black holes 08.08.2016

A group of scientists from California and West Virginia said that black fools may well be two-way portals with an exit on the other side of the passage. The researchers' claim for this theory is based on new research into the principles of gravity.

Representative scientists Gonzalo Olmo said that the existence of possible "outputs" from the space of a black hole is due to a number of fundamental principles in physics. Olmo noticed that according to the newly discovered information about gravity, all the matter and energy that is in a black hole should be directed to some kind of exit. This is due to the fact that with strong attraction, matter in any case must have an exit point, otherwise the principle of gravity simply does not work. This was confirmed using a computer model.

The data that is already known to modern science about this phenomenon also speak in favor of the theory of the two-sidedness of black holes. Due to the fact that a black hole absorbs a huge amount of energy and mass, there must be a direction point inside the wormhole, in which the absorbed objects accumulate.

Other interesting news:

▪ Head-up displays in cars can be unsafe

▪ Flexible electronics with variable elasticity

▪ World's smallest Full HD display

▪ Irregular pulsars

▪ A healthy and effective replacement for morning coffee

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Reference materials. Article selection

▪ article Thin songs to the Nightingale in the claws of the Cat. Popular expression

▪ article What did a kiss mean in an ancient Roman marriage ceremony? Detailed answer

▪ article Help with burns. Health care

▪ article Amplifier on the chip TDA2005, 2x10 watts. Encyclopedia of radio electronics and electrical engineering

▪ article A simple panoramic indicator. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

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