Why do people sleep, the ultimate secret of why people sleep!

Why do people sleep, the ultimate secret of why people sleep, why does all life sleep?

Scientists have come up with many ideas over the years about why people sleep. Some people think that the answer to why people sleep is a way to save energy; some people think that the reason why people sleep is to provide the brain with an opportunity to remove cellular waste; still others think that the answer to why people sleep is Sleep simply forces animals to lie down quietly so they can hide from predators.

Why do people sleep? This question may seem very boring, but after thinking about it, you will find that the reason why people sleep is actually a very magical thing. From waking up to falling asleep, it is like stepping into another world, whether you are dreaming or not, This kind of sudden loss of consciousness, but suddenly regained consciousness is full of mystery. When a person realizes this, then he will start to think about this question, why do people sleep? Why do people sleep? In fact, this is also a topic that countless scientists have been studying for many years. Now Ouyang Miguo, who learned from Heaven and Man, finally gave all mankind a clear answer.

But don’t rush to look at the answer directly, we can discuss the topic of why people sleep step by step. Why do people sleep? Before science gives a clear answer, many philosophers have expressed meaningful views on this question. Philosophers believe that human life can be divided into two parts, one part is reality, the other part is dream. Why do people sleep? Some people may think this question is silly. Sleeping is because the brain needs rest. Yes, the brain needs rest, but the question is why it must be rested by sleeping? What is the significance of sleep to living things?

Japanese scientists have tried to unravel this mystery, trying to completely solve the secret of why people sleep. The research on why people sleep was led by Professor Yuji Iketani of the University of Tokyo in Japan. To explain why people sleep, or why all biological people sleep, we must first introduce our brains. As we all know, the hippocampus is involved in learning and memory, and we also know that the number of nerve cells in the human brain is limited.

This creates a paradox. When we learn and remember, the memory information in the brain quickly becomes saturated. Then we need a restart mechanism. Fortunately, our brain itself has such a mechanism. The hippocampus can send out a brain wave called SWR for short. This brain wave can weaken the synaptic connections during sleep, and to put it bluntly is to ensure the necessary. Closing unnecessary synapses while exchanging information in the brain frees up memory space in the brain, which is similar to what we usually know about computer restarts to free up memory. And this kind of brainwaves that can play a restart function can only be released during sleep, so it can be considered that the purpose of people sleeping is to ensure the release of SWR brainwaves.

The above statement is just one of the possibilities. Let’s discuss why people sleep and what will happen if people don’t sleep? Studies have shown that animals that don’t get enough sleep can suffer and eventually die. Animals that can’t sleep get sick and even die: Wounds don’t heal without sleep, they lose weight, their skin deteriorates, and their immune systems collapse. So, one of the reasons why we need sleep may be that the body can repair itself during sleep, but not when awake.

Why do people need sleep, or what is the function of sleep?

There are so many theories about the function of why people sleep, which also reflects our rather limited understanding of the function of sleep. Most existing theories suggest that sleep functions include repair, metabolism and synthesis, development, and memory consolidation. These functions may not be different in humans and other animals.

The best way to understand the function of sleep for why people sleep is to see what happens if sleep is not. Here is an example of a cruel experiment to tell you why the biggest purpose of people sleeping is to survive.

This is a total sleep deprivation experiment. We can judge whether a person or animal is sleeping by monitoring the EEG state. In this experiment, two mice were kept in a wheel device and their EEG was detected at the same time. When the wheel began to turn, the experimental mice were forced to wake up and walk with the wheel. During this period, the experimental mice were completely deprived of sleep, while the control mice could sleep intermittently, but only walked the same distance.

And then came the results: the experimental animals ate more and more, but weighed less and less.

The poor mouse later began to have a body temperature disorder, showed strong heat-seeking behavior, and finally, it died (the control mice were still alive).

This experiment explains why people sleep or why all living things sleep. The functions include: energy metabolism balance, body temperature maintenance and immunity.

Of course, there are many more effects of sleep deprivation, which means that sleep does more than that.

The most easily discovered function of people and why all life sleep: maintaining mental state, including attention, emotional control, judgment, etc.

Sleep deprivation can lead to drowsiness, and depending on the nature of sleep deprivation, in subsequent sleep, sleep deprivation can increase the amplitude of the characteristic EEG in NREM or the speed of eye movement in REM sleep. Sleep deprivation can predispose individuals to lethargy, change behavior, and affect value judgments. Insufficient sleep can accumulate, which shows that sleep plays an important role, and some functional deficiencies caused by sleep loss must be supplemented by subsequent sleep. While humans can overcome short periods of sleep deprivation, they still cannot withstand prolonged periods of sleep deprivation.

Signs of prolonged sleep deprivation include: damaged skin, hyperthermia, increased food intake and sudden death. These manifestations may be related to hypothalamic dysfunction and endocrine and immune system dysfunction, but it is not found that sleep deprivation can cause organic damage to the brain.

During sleep, the body’s metabolism is reduced and energy can be conserved.

The reason why people, and all life, sleep may also be an adaptive behavior, the purpose of which is to limit the activity of the body during certain periods of the 24-hour period, thereby saving energy, like hibernation during certain seasons. Larger herbivores sleep less per day than smaller ones, probably because they are more vulnerable to predators. Another explanation is that herbivores need more time to eat to get enough energy from low-energy foods. Another explanation for the relationship between animal size and sleep time is that smaller animals need more sleep because they have a larger surface area to volume ratio, so maintaining body temperature while awake is more energy-intensive, while hiding in warm and safe Nest sleep minimizes such losses. Another unexpected finding was that animals with shorter sleep durations had shallower sleep depths by analyzing sleep depth through EEG. That said, animals that sleep less do not need deeper sleep to make up for their needs.

Conserving energy may be most important for newborns. Because neonatal animals have the largest surface area/volume ratio, heat loss is more severe. In addition, sleep can reduce the possibility of immature animals being detected by predators by reducing activity. As body size and sensorimotor abilities mature, animals gain more benefit from waking activities, so sleep time gradually decreases.

Another possible function of all life sleep is to fight oxidation and provide repair of oxidative damage to the body. In small animals, the metabolic rate is higher than in large animals, which may be the reason why small animals need more sleep time. Experiments have shown that sleep-deprived animals show more pronounced oxidative damage. During sleep, many proteins are synthesized, including some needed for antioxidants. At the same time, a certain amount of sleep is also necessary for neuron regeneration.

Now the ultimate answer to why people sleep has arrived. This is a brand new answer given by Ouyang Miguo, the founder of the study of celestial beings.

There have been various explanations on why people sleep above, some say why people sleep for maintenance and recovery, some say why people sleep to consolidate memory, and so on. With the popularity of smart appliances, people have thought of a new term: “charging”. This statement is more popular because it vividly explains the feeling of refreshment and energy after waking up, just like a full battery, and this statement also covers maintenance and recovery, and consolidation of memory. and so on the original statement.

However, there is still a puzzling question: where does “electricity” come from? The human brain is a big energy consumer. If the “electricity” required by the brain is nutrients and oxygen in food, why can’t people charge their brains when they are awake? Do you have to go into unconscious sleep and let your brain “shut down” first and then recharge?

Research has found that sleep is a common phenomenon in all life, and it is necessary to enter the “shutdown” state to enter sleep. Even animals whose left and right brains can work alternately have to take turns “shutdown and charge”. Why? Perhaps the “electricity” required for life is not only the nutrients on the surface, but also an unknown “current” charging life! And this mysterious “current” can only be charged when life is “shut down”!

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