How do birds sleep?

During the day, birds fly among the branches and fly freely under the blue sky. At night, they also need to rest and sleep like us. Recover your strength, but their sleeping postures are different!

The beautiful mallards and swans hunt and play in the water during the day, and they cannot do without their favorite water surface when they rest at night. They bend their graceful long necks, bury their heads in their wings, and then let themselves float on the water, dreaming sweet dreams while drifting with the current, so leisurely.

Long-legged birds such as cranes, storks, and herons always sleep on one foot independently, and then switch to the other foot when they are tired, which is a model of combining work and rest.

When partridges rest, they like to form a large circle in groups, with their heads facing outwards and tails facing inward. In this way, no matter which direction the enemy attacks from, they can detect and escape in time.

Thrushes, larks and other small birds with sweet calls usually bend their legs when sleeping and bend their claws to firmly grasp the branches, so there is no need to worry about them falling from the trees.

As for the owl, a bird of prey that is on "night shift", you can always see it standing on a thick branch with one eye open or closed during the day, but it is actually sleeping at this time. Isn’t the owl’s sleeping posture very unusual? It does this to constantly monitor the surrounding environment and guard against enemy attacks!

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Can fish also drown?

Fish have gills and can breathe in the water. Fish have swim bladders and can swim in the water. Float freely. However, some people say that fish living in water can also drown. Is this true?

Although this sounds ridiculous, it is true. The swim bladder is a "lifebuoy" used by fish when swimming. It can adjust the specific gravity of the fish by inflating and deflating. In this way, the fish only needs minimal muscle activity when swimming to maintain a stable state of neither sinking nor floating in the water. However, when the fish sinks to a certain water depth (i.e., the "critical depth"), the huge external pressure will make it unable to reduce the size of its swim bladder. At this time, the buoyancy force it received was less than its own gravity, so it sank to the bottom of the water involuntarily, could no longer float, and eventually drowned due to being unable to breathe. Although the fish can still float up by swinging its fins and tail, it will not help if it sinks too deep.

On the other hand, fish living in the deep sea can live freely in deep water because their skeletons can withstand great pressure. If we quickly bring a fish living in the deep sea above the "critical depth", because the pressure inside its body cannot balance with the smaller external pressure, it will continue to "expand" until it floats to the surface. Sometimes, it will even spit out its internal organs and "explode" to death.

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Glutty children become stupid

Gluttony will reduce blood flow to the brain

If you eat too much at one time or eat continuously, a large amount of blood in the human body, including blood from the brain, will be diverted to the gastrointestinal tract. Adequate blood supply is a prerequisite for development. If it is often in a state of ischemia, its development will inevitably be affected.

Gluttony will cause a "fat brain"

Eating too much, especially excessive amounts of highly nutritious foods, will greatly exceed the calories consumed, causing the conversion of heat energy. Fat accumulates in the body. If there is too much fat in the brain tissue, it will cause "obese brain". Research has confirmed that human intelligence is related to the number of brain sulci and folds. The more obvious the brain's sulci and folds, the higher the level of intelligence. In an obese brain, the grooves and gyri are closely together, the wrinkles disappear, the cerebral cortex becomes smooth, and the development of the neural network is also poor, so the intelligence level will be reduced.

Gluttony will inhibit the physiological functions of the intelligent areas of the brain

The human brain activity pattern is mutually induced by excitation and inhibition, that is, when certain parts of the brain are excited, the activity in adjacent parts of the brain is stimulated. Some areas are in a state of inhibition. The stronger the excitement, the deeper the inhibition in surrounding areas, and vice versa. Therefore, if the autonomic nerve center in charge of gastrointestinal digestion is excited for a long time due to gluttony of excessive food, this will inevitably cause the inhibition of adjacent intelligent areas of the brain such as language, thinking, memory, and imagination.

If these areas are often inhibited, intelligence will become worse and worse.

Gluttony can damage the brain due to constipation

Children’s snacks are mostly high-nutrition refined foods, which can easily lead to constipation. During constipation, metabolites accumulate in the digestive tract for a long time. After the action of intestinal bacteria, a large amount of harmful substances are produced, which are easily absorbed through the intestines, enter the blood circulation, stimulate the brain, chronically poison brain nerve cells, and affect the normal development of the brain.

Gluttony can also promote premature brain aging

Scientists found in a study that a substance that can promote premature brain aging, fibroblast growth factor, can cause premature aging due to excessive food. It increases tens of thousands of times after a meal. This is a substance that can promote arteriosclerosis. Therefore, in the long run, gluttony will cause premature aging of the brain.

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Recommend several websites ：

Tencent Technology

/

Science Network

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Technology’s famous saying:

Technology is the primary productive force—— Deng Xiaoping

The biggest difference between communication today and communication in the past: due to the intervention of technology, "communication" has transcended time, space, and even the walls of power and class

---- --Gifford

The market economy depends entirely on oneself, and innovation is required while seeking differences. The specific feeling is that we should regard the prosperous world as a wilderness, regard the already dazzling material civilization as virgin land that has not yet been cultivated, and boldly explore and shape the civilized world in our minds according to our own wishes.

————China, "The Rise of the Fourth Industry" by Yan Jianzhong, page 301

------Yan Jianzhong

Product development is inseparable Create new ideas, innovative ideas are the most beautiful flowers of human wisdom.

————China, "Product Development Techniques" by Guo Guanghua, page 95

------Guo Guanghua

Even if the Japanese are now We also have to transcend the stage of imitating, importing and adopting other people's technologies, and learn to carry out real technological innovation ourselves...

————〖Peter Drucker〗American management authority

"Innovation and Entrepreneurship" Page 33

------Drucker

Innovation is the specific tool of entrepreneurs, that is, what they use to Change as a means of creating opportunities for a new industry and a new service. … Entrepreneurs need to consciously look for sources of innovation and for signs of changes in circumstances that indicate opportunities for successful innovation. They also need to understand and apply the principles of successful innovation.

————〖Peter Drucker〗American management authority

"Innovation and Entrepreneurship" page 19

---- --Drucker

The company presidents who are most successful in identifying innovative ideas are always good at dealing with innovative people and good at listening to their opinions, including opinions that may sound a little weird. ...In order to obtain innovative ideas, as a company president, you must be willing to admit and accept all the unpleasantness caused by innovative ideas.

————〖Sweeney〗American management scholar

"To Future CEOs" page 33

------ Sweeney

In order to generate innovative ideas, you must have: (1) necessary knowledge; (2) an attitude that is not afraid of mistakes and making mistakes; (3) concentration and deep insight.

————〖Sweeney〗American management scholar

"To Future CEOs" page 29

------ Sweeney

As a future president, he should have the ability to inspire and identify innovative ideas.

————〖Sweeney〗American management scholar

"To Future CEOs" page 25

------ Sweeney

The age of innovation is actually a natural accompaniment of the information age.

Although we have mastered new information, there are still weak links. It does not appear in the creation of information, nor in the storage of information, nor even in the acquisition of information, but in the use of new information to do things. on new things.

————〖Gifford Pinchot Third〗 American consulting expert

Page 17 of "Innovators and Corporate Revolution"

-- ----Gifford Pinchot Third

In the future, only a small part of the value of products produced in advanced countries will come from the labor of blue-collar workers and capital goods, but mainly from ideas. and innovation.

————〖Gifford Pinchot Third〗 American consulting expert

Page 16 of "Innovators and Corporate Revolution"