In modern society, people's lives are under great pressure, and the time to eat and sleep is not particularly regular, plus many people like to stay up late, and lack of sleep has almost become the norm.
There are always some people who can be refreshed even if they don't sleep for a short time, even if they only sleep five or six hours a day, but there are also some people who feel groggy and have no energy no matter how long they sleep.
In particular, some elderly people sleep much less every day than younger people, but they are unexpectedly mentally mented during the day.
Is there something wrong with the 8-hour sleep theory that I have always believed in?How long does it take for people over the age of 65 to sleep a day to be healthy?
Nowadays, many young people are busy with work during the day, and sometimes they don't even bother to eat, let alone take some time to take a nap.
When I got home at night after being busy during the day, I was finally able to relax, and I wanted to play games again, and the time passed little by little.
They always feel that the daytime does not belong to them, and they can only enjoy a short free time at night, so they will habitually stay up late.
In addition to enjoying a person's night, there are actually many people who stay up late and work overtime in order to live, and this phenomenon makes their sleep time very chaotic.
When it comes to the weekend, as long as they don't go out, they basically spend it in bed, and some people will sleep in order to "catch up on sleep" as long as it is the weekend.
In fact, this so-called "compensation" method cannot make up for the loss suffered by the body, and even has the opposite effect.
There are also people who insist on sleeping enough for 8 hours a day, but still feel very tired, but occasionally when they don't sleep enough for 8 hours for some special reasons, they feel very refreshed.
What the hell is going on here?Is the 8-hour sleep theory wrong?This also starts with the origin of this theory.
Strictly speaking, there is no scientific basis for the 8-hour sleep theory, which first appeared during the Industrial Revolution.
At that time, workers in Western countries were brutally oppressed for the sake of production, and in some positions they even had to work around the clock.
The capitalists enjoyed the fruits and wealth, while the workers did not even have time to eat and sleep normally, because they worked 16 hours a day.
Such high-intensity work is simply not something that the human body can handle, and more and more workers are feeling unwell, but the capitalists are not relenting.
The contradictions have accumulated to a point where the end result can only be an eruption, with the workers going on strike en masse, demanding that the capitalists revise their working hours and fight for higher wages for themselves.
The 24-hour day was proposed by the Egyptians, so the workers demanded that the 24-hour day be divided into three parts, that is, "8 hours of work, 8 hours of sleep, and 8 hours of leisure".
After this demand was put forward, it was directly responded to by workers all over the country, and the capitalists and ** could not resist such pressure at all, so the "8-hour sleep theory" was popularized.
In other words, the original "8-hour sleep theory" was not actually for scientific sleep, but just a slogan for workers to fight for their own rights.
Modern scientific research has also proved in the memorial that this "8-hour sleep theory" actually has no scientific basis.
In fact, sleep is not as we think, there is no change from the beginning to the end of sleep, or most people only know deep sleep and light sleep, and do not know that sleep actually has cycles.
Generally speaking, sleep is divided into four stages, the first stage is not actually entering the state of sleep, but what we call dozing off.
At this stage, it can be said that the state of preparing for sleep is basically only a few minutes, in this case, the person's body begins to relax, and the breathing and heartbeat are slowly flattening.
After the first stage is basically completed, it will enter the second stage, which is the familiar light sleep stage, at this time, people's sleep patterns are still unstable, and there will be noisy sounds will be woken up.
This state,Actually, it's a bit like a TV that hasn't been turned off but has entered sleep mode,If there's no movement,It'll be like it's turned off。
But as long as there are some actions, such as moving the remote control, it will wake up quickly, and if you are woken up at this stage, it actually means that you are still not really asleep.
The third stage is the state of deep sleep when you are really asleep, in which case the general movement is not noisy.
Because at this time, the human body is as if it has been shut down, the inside of the body is repairing itself, the cells are thriving, and the muscles and nerve tissues are also repairing and maintaining.
This is not the end, there is a fourth stage, which is rarely understood, called REM sleep, also known as the dream sleep stage.
In this state, the person's various sensory abilities will be greatly weakened, and the muscles at this time are almost completely relaxed, and the most important thing is that the frequency of eye movements is increasing, which is why this stage is called rapid eye movement sleep.
Some people can't wake up after entering REM sleep, they are considered to be asleep, and they are woken up at different stages, and people feel different.
Not only that, sleep duration also affects a person's state after waking up, and in general, the relationship between sleep duration and health risks is a U-shaped curve.
Whether it is insufficient or too long, it is not good for physical health, and the length of sleep is actually related to age.
Two years ago, some researchers in the Journal of the American Medical Association conducted a study on sleep duration and mortality in East Asians.
They collected data on more than 320,000 Asians and followed them for more than a decade to finally find the best sleep time for Asians.
For Asians, sleeping about 7 hours has the lowest risk of various cardiovascular and cerebrovascular diseases, and the mortality rate is also the lowest.
However, this is an average number after all, and in fact, there is a great deal of individual variation in how long a person should sleep to be the healthiest.
Some authoritative medical experts said that people of different ages sleep for a very different time, just like a newborn, sleeping for up to 16 to 18 hours a day, and some even longer.
Before the age of one, babies generally sleep more than 12 hours, teenagers sleep about 8 to 10 hours, and adults 7 to 8 hours.
Such interval data is relatively accurate, but just like no two snowflakes in the world are exactly the same, no one must have the same sleep time.
In fact, as long as a certain quality of sleep can be guaranteed, time is just a number, and everyone is different, but there is a general range at different ages.
The sleep of the elderly is actually shorter than that of the young, and there are some sleep characteristics that are unique to the elderly.
The first is the most noticeable shorter time, with older people usually getting about an hour or two less sleep per night than younger people.
This is because the proportion of deep sleep and REM sleep decreases among the four sleep cycles in older people, and although the four cycles are still alternated, the overall time is shorter.
Another feature is that light sleep is more and easier to wake up, because of the aging of the body, the nervous system and endocrine system of the elderly are still very different from when they were young.
They have a higher proportion of light sleep in their sleep cycle, are more sensitive to their surroundings, and have less stability and quality of sleep.
However, this does not mean that the need for sleep in the elderly is less, on the contrary, it is because of the decrease in quality and stability that a good sleep is particularly important.
Sleep is an important stage for the human body to repair itself, and the elderly, especially those who have passed the age of 65, have a worse ability to repair their bodies than young people, so sleep is even more important.
According to the conclusions of scientific research, the elderly should also sleep between 7 and 75 hours, but in practice, it is rare for people over the age of 65 to be able to sleep seven or eight hours a night.
Many elderly people get very little sleep, and some even have to toss and turn for two or three hours before they can fall asleep.
Therefore, the elderly over 65 years old should not pay attention to a stereotypical sleep time, but focus on improving sleep quality.
If you want to do this, you must pay attention to it, when you are older, don't stay up late like young people, let alone irregular work and rest, sleep at nine o'clock today and stay up until midnight tomorrow, which is very harmful to the body.
Elderly people should maintain a healthy and regular lifestyle, try to go to bed before 10 to 11 o'clock, and should not exceed 12 o'clock at the latest.
In fact, it is very common for the elderly to not be able to sleep at night, or to sleep for a short time, so there is no need to worry too much, as long as the sleep quality is not too bad, the problem is not big.
It should be noted that if the sleep time at night is relatively short, you can take a nap during the day, and when you feel sleepy, sleeping for about half an hour can also be a good way to eliminate fatigue.
There are some behaviors that can make it difficult to fall asleep, such as eating some foods that are difficult to digest before bedtime, or doing some more strenuous exercise, which should be avoided before bedtime.
It is also important to note that bad habits such as smoking and drinking alcohol can stimulate the nervous system and cause difficulty in sleeping or poor sleep quality.
The 8-hour sleep theory has been replaced by a more scientific conclusion, and everyone's need for sleep is different, so there is no need to worry too much about how many hours of sleep you have.
As long as you can replenish your energy and feel your body more relaxed after sleep, this is actually a more suitable time to sleep.