Whether the time to wake up from sleep in the morning can be freely controlled by the person who sle

If you want to get rid of the alarm clock, you have a way to wake up at one o'clock every day. After a period of time, you don't need to use an alarm clock, so that there is no need to use an alarm clock after forming a habit. Use the alarm clock when you need a special time to wake up, which can reduce dependence.

And if you're not afraid of insomnia, remind yourself before going to bed how important it is to get up tomorrow, so that you can wake up when you have something in your heart. (The most obvious is that parents are always punctual when they wake up their children, and this is because they value their children, so they don't forget in their hearts!) ）

Or the easiest way is to have someone call you for sure, but you have to make sure that the person who calls you doesn't wake up late.

What the landlord said should be whether it can be after the time change, not the usual point. I think some people can and some people can't, like me, for example, the next day when I have to wake up at a certain point or before when I have an emergency, I usually wake up a little earlier at this hour, which may be related to the strength of the person's biological clock.

OK! This is the principle of the human biological clock! Force yourself to wake up at a fixed time every morning, and over time, the body's biological clock will be affected, and a conditioned reflex will be formed

I wake up automatically every day at a fixed time! It's up to you to get out of bed or not!!

I don't think so. Because the time to get up every morning has become a habit.

For example, I wake up on time at 5:30 a.m. every day during class, but I unconsciously get later and later after the holidays.

Yes, if you always point it up.

This one seems to be innate. If you don't have an alarm clock, how can there be a market?

This has to do with the biological clock. The biological clock, also known as the biological rhythm. It refers to the internal rhythm of the organism.

For example, we wake up at sunrise and sleep at sunset. This circadian pattern is closely related to a structure in our brain: the suprachiasmatic nucleus.

The superior cerebellar nucleus is an important central biological clock in mammals. It is located in the anterior part of the hypothalamus and above the optic chiasm and is the main part of the brain that produces most circadian rhythms.

Compared to other brain structures, the suprachiasmatic nucleus is somewhat special. Because it has many neurons with autonomic rhythms. These cells are amazing.

They give "commands" to the body based on changes in the outside light, thus waking us up from sleep. You might say, how do you know what happens to the light outside the brain when these nerve cells are in the brain?

The "third eye" of human beings is our body, which opens the "back door" of the optic chiasmatic nucleus. In the mammalian retina, some optic nerve cells contain the substantia nigra, which is specialized. They are not related to visual imaging, but are directly related to the suprachiasmatic nucleus.

In other words, these optic nerve cells are dedicated to the suprachiasmatic nucleus.

This part of your optic nerve cells can feel light before you open your eyes. They will tell the suprachiasmatic nucleus: "Light begins to appear around the body".

The suprachiasmatic nucleus begins to guide the secretion of neurotransmitters by relevant organs and tissues in the body, such as dopamine, acetylcholine, adrenocorticotropic hormone-releasing hormone, etc. Then, you begin to wake up gradually. Dopamine is associated with human desires and feelings, and it transmits messages of excitement and happiness.

Acetylcholine is a neurotransmitter that is often involved in muscle activation. Serotonin helps maintain arousal and cortical responses while inhibiting REM sleep.

It is because all the bodily functions of the person have been rested, so they will wake up.

After a long period of sleep, the functions of the human body have been rested.

Because the body has regained the necessary physical strength, it will wake up on its own.

This is the original subconscious played a certain role. Awakening effect.