The science of sleep
A cobbler was making shoes. I had just cut my skin when I fell asleep. When I woke up in the morning, my shoes were sewn together. It's a childhood magic story, but it's not a lie. Sleep does such magic with us.
If you are fifty years old, you have spent eighteen of those years in gold. But those eighteen years were not a waste of time. Gold for the brain is a global event when the whole brain changes its state. Take a look at what happens in the brain during this time.
Brainwashing Brain cells shrink somewhat, and rapidly cerebrospinal fluid is pumped between the brain and the nervous system to release toxins. When we wake up, the brain cells get bigger again and the flow of this fluid between them stops. Neurosurgeon Dr Nedergard, who is researching the disease, says the process is as dramatic as washing dishes and opening and closing a tap. When awake, the brain cannot do this because the process requires energy, and at the same time it would be difficult to wash it and analyze the sounds and scenes around it, to talk and move. It clears beta amyloid. When these substances are not clean, they form a toothpaste-like layer on the brain that causes Alzheimer's disease.
Information processing and memory strengthening. The brain processes information within itself in a variety of ways. Experiments on this have shown that our memory improves during sleep, as well as our ability to see things from a new angle. At this point the logical part of the brain shuts down and that is why in a dream you can do things that seem irrational to think, but in this way our mind understands the world by combining different ideas.
Tissue repair. The third stage of sleep, which is the deepest sleep, releases growth hormone. It is important to make new cells to replace the dead cells. Also for muscle development and children's growth. At this point the muscles relax, the breathing becomes lighter. The blood supply to the muscles increases.
Accuracy of metabolism. Two hormones, ghrelin and leptin, play a key role in controlling metabolism and appetite. If sleep is not good, then in addition to metabolism, the brain's signal that the stomach is full is also affected.
Energy recovery The brain's energy is glycogen, which is stored in different parts of the brain and is depleted. It is restored during sleep and especially during the rapid eye movement stage.
Who needs how much sleep and when? Not a single good answer to this, our own cycle of the dark hormone melatonin itself is just as unique to each person as fingerprints, but some signs
1. If you sleep more than usual on holidays, you are not getting enough sleep
2. If you have to set an alarm to wake up, you are not getting enough sleep
3. If you need tea or coffee to wake up in the morning, it is a sign of lack of sleep.
And if you don't get enough sleep, this habit will make you sick, frustrated, fat and stupid.
Note: If this post was so boring that I fell asleep while reading it, then this is a good post for you. If it's time to go to bed, put your cell phone or computer aside and go to sleep instead of doing anything else. After the rest of the talk.
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