What happens to us during sleep? Detailed answer

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What happens to us during sleep? Detailed answer

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What happens to us during sleep?

We are conscious when we think or when we are cold or hot. But what happens to our body when we sleep? During sleep, the muscles of the body are relaxed. If you try to calmly raise the sleeping person's hand, then it will turn out to be completely weak-willed and cannot be stable. And one of the reasons we lie down to sleep is to allow our muscles to relax.

But there is a group of muscles that do not relax during sleep. These are the muscles around the eyes and eyelids. They keep the eyes closed. During nighttime sleep, the body makes many movements. We can change the position of one or another part of the body, or, by turning, completely change the position of the body. Some people move more in their sleep, others less. It depends on the degree of fatigue, temperature, what we ate before going to bed, etc.

On average, a person makes 20 to 40 movements per night. This is about 30 seconds per hour, or a few minutes all night. Upon awakening, each of us reacts differently to external phenomena. But during sleep, we all react in much the same way to the signals that our senses receive. Sound, light, heat, smell cause almost the same reactions in all sleeping people!

What happens inside our body during sleep? Of course, the blood continues to circulate, but the heart rate goes down. Breathing also slows down, becomes not as deep as when waking up. The stomach continues to function normally. The liver and kidneys function in slow mode. Body temperature drops by one degree. Sweating increases somewhat, although on the palms and feet it is less during sleep than when waking up.

Some people believe that our sleep becomes deeper at certain times of the night. This is not true. Even within a single night, we can go from light sleep to deeper sleep several times.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What stones are called precious?

To be considered precious, a stone must have certain properties. It must be beautiful, hard enough and strong enough, it must be rare and valuable enough. Diamonds, rubies and emeralds have all these qualities to a sufficient extent and are the most real precious stones. Precious stones, with rare exceptions, are minerals.

Minerals are inorganic (not formed from living beings) compounds of chemical elements that occur in the earth. There are 4 precious stones of organic origin: pearls, amber, coral, agate. They are formed by animals and plants. The beauty of gemstones depends on color, brightness or unique optical phenomena.

Brightness refers to the luminosity of a stone, or its ability to reflect light. Optical phenomena refers to the rainbow effect caused by the ability to refract white light. For example, colors play in a diamond so that it seems to be full of fire. Gems can be found in all colors. Ruby is deep red, emerald is green. Each gemstone has its own hardness and rigidity.

Hardness is the resistance of a stone to scratches and sawing. Rigidity is the resistance to fracture. Gemstones were formed using the same processes as other minerals. But they were formed under more favorable conditions, which made it possible to obtain transparent, beautiful stones.

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