What is biphasic sleep, why did people used to sleep twice a night?

According to statistics, every third person suffers from insomnia. Waking up at night is often a cause for concern, but there is nothing to worry about. Historians and psychiatrists talk about this. Our ancestors slept twice a night and did not experience any problems with sleep. Where did the continuous eight-hour sleep come from then? Let's figure it out together with somnologist Daria Lebedeva

and doctor
Oksana Sadykova
.


I stopped getting enough sleep: why do I always want to sleep?

Expect profit in everything!

Why else do you dream about the number two? This is a sign of passivity and the receipt of physical and spiritual values. For example, if a vision appeared to a businessman, then he will receive a profit. For a philosopher, this is a symbol of acquiring true knowledge.

But if you managed to stay in the dream for the second year at school, then in real life you will do the stupidest thing and return to the failed test.

“Why do you dream of a deuce in a dream? If you see a Deuce in a dream, what does it mean?

Numerological dream book of Pythagoras

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To dream that you are a teacher and give your student a grade of “2” means that in reality in 2 weeks you will show stubbornness and intractability, and as a result, you will lose the opportunity to make a valuable acquisition or take a good position. If you see yourself as a student and they give you a bad mark, then this means that you must act immediately, showing initiative and perseverance. After 11 days, people will come to you who will tell you whether you have chosen the right direction or whether it needs to be adjusted. Take their advice. Seeing someone writing a big two in a notebook in red ink means that in real life you will become a witness to a crime, and it will take you 2 months to deal with the unpleasant hassle of dealing with the police and testifying in court. Write a bold rating of “2” yourself with a red pencil, pen or felt-tip pen - you want to break off relations with a loved one, but if you do this, you will regret your haste all your life. You don’t know a lot, so don’t rush to cut this knot - it’s best in this situation to wait 2 weeks for clarity to appear in the matter.

Dream interpretation of birthday people of September, October, November, December

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Getting a bad grade at school means getting a good grade in reality.

Dream interpretation of birthday people in May, June, July, August

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Getting a bad mark at school, which they put in your diary, means punishment.

Dream interpretation of birthday people of January, February, March, April

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Seeing a two in your diary is a sign of edification.

Dream Interpretation from A to Z

Why see Deuce in a dream?

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The number two itself in a dream means gossip.

Symbolic dream book

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Two means lack of confidence in your capabilities, emotional restlessness. It portends working in a team with friends or relatives.

Dream Interpretation of Shereminskaya

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Two - duality, alternation, difference, conflict, dependence and staticity. This is balance, stability, opposite poles, a reflection of the dual nature of man. Everything that is manifested is already dual and forms pairs of opposites.

Two is the first number after one, so it also symbolizes the sinful nature of man. The properties attributed to this number are traditionally associated with femininity: softness, tenderness, modesty, obedience and submission.

Two is the number of passive acceptance and reception in the broadest sense. So, for a businessman, a deuce is a favorable day for making a profit.

A pair of animals, even of different species, but with the same symbolic meaning, for example two lions or a lion and a bull (both sun signs) - means double strength.

What changes will happen?

The dream book advises you to remember as accurately as possible exactly where you saw the number. It can give a hint in what area and how soon change will happen.

The number of an apartment or house means a matter that will require precision execution. Did you dream about the number two on a car? Troubles or difficulties related to finances are coming.

If two is the number of the participant in the game or competition, then you will face a lack of time. Why do you dream of a number in the wardrobe with the indicated number? In reality you will lose a valuable or memorable item.

When did the habit of sleeping twice a night begin to disappear?

Roger Ekirch concluded that in 1920 the idea of ​​a first and second dream had disappeared. But the prerequisites for the new routine can be traced already at the end of the 17th century. Then Europeans began to abandon the fragmentation of sleep. With the advent of electricity, there was no point in going to bed early.


Photo: unsplash.com/@brucemars

This sleep schedule also became the “norm” during the Industrial Revolution. Then 24-hour coffee shops began to appear en masse. The surge in establishments that stay open all night has forced city residents to reconsider their habits.

Partly, the tendency to sleep several times a day has survived to this day: that same afternoon nap and siesta are also considered a subtype of biphasic sleep. Many people like to take a nap in the afternoon, but residents of Spain, Italy and Greece do it more often.

Daria Lebedeva

somnologist

Our body is very smart and knows how to adapt to new conditions. Now we spend a lot of time in the office, work 12 hours a day, get our children ready for kindergarten or school - ancient people did not have all this. But no one knows exactly how our ancestors slept.

In general, polyphasic sleep (which is divided into several periods during the day) is more typical for animals than for modern humans. The fact is that continuous sleep means the risk of being eaten. It is safer to sleep in short periods. In this case, you can hide somewhere. Therefore, we have retained the habit of waking up in the middle of the night - that is, this is absolutely normal. We need night awakenings to roll over and check the situation around us. It so happened evolutionarily that we can sleep only in a feeling of complete safety.


“Golden Dream”: how the quality of rest depends on the time of day

Remember this day!

What does the number two on a transport ticket symbolize in a dream? The dream book promises insignificant income, a small acquisition.

If you dreamed of a calendar with a specified date, then it is on this day that something non-trivial will happen to you in the real world. Seeing a two-kopeck coin is just great: establish business connections, make a profitable deal.

Why do you dream about sex with two girls?

Sex with several girls at the same time predicts sudden complications. There is a possibility of getting into a huge bind, with group responsibility. Your guilt will be amplified by the actions of your environment. The situation will get worse if the girls are your real acquaintances.

Sex with two girls in a dream also does not bode well if one of them is your ex. Your secrets will become public knowledge, with all the ensuing unpleasant consequences.

Agree to a compromise!

On a nightly adventure, were you a teacher and gave someone a bad grade? After about two weeks, you refuse to compromise and lose your chance at a promotion or a successful acquisition.

If, on the contrary, you were a student in a dream who got a “couple,” then the dream book advises you to immediately take active action and take the initiative.

In addition, on the 12th day after this dream, you will meet people who will suggest the direction of further searches. Don't ignore this advice.

Two pregnant girls according to the dream book

Strong and deep impressions await the sleeper in reality if he dreams of pregnant girls. Moreover, they may not necessarily be connected with the sensory sphere. It is necessary to increase vigilance, first of all, in communicating with those around you with whom you have financial relationships.

When two pregnant beauties in a dream assure you that you are the future father, then this is not bad at all. There is a chance to move up the career ladder, or improve your financial situation.

Don't rush to conclusions!

Why do you dream about how carefully you wrote the number two on paper? In reality, you will witness an unusual incident, perhaps a crime, and you will live under pressure for several more months.

Sometimes in a dream the plot indicates haste in decisions, especially when it comes to personal relationships. Dream book advice: do not rush to chop rashly, the situation will soon clear up.

How did people sleep before?

No one doubts that you need eight hours of sleep. But research shows that nature has provided a different cycle of rest and wakefulness for humans. Our ancestors divided sleep into two parts with a break of 2-3 hours at midnight. This practice is called segmented or biphasic sleep. Over time, everyone happily forgot about it.


Photo: unsplash.com/@benblenner

In 2005, historian Roger Ekirch recalled this feature. He studied the topic of sleep segmentation for 16 years. Of course, he didn't have a time machine to spy on life in the past, but he studied 500 different sources. The historian collected hundreds of documentary evidence about polyphasic sleep and published them in the book At Day's Close: Night in Times Past.

All the sources in his work - medical, historical and literary - point to the habit of people in pre-industrial times and before the invention of electricity to sleep intermittently. Our ancestors left for the side about two hours after dark. Somewhere at midnight they woke up, and a few hours later they fell asleep again - until the morning. That is, “sleeping like the dead” was unusual for them. They didn’t have a clear schedule—everything was optional. Night awakenings did not bother them at all. As Ekirch found out, ancient people spent this time usefully: praying, having sex, smoking tobacco, socializing, thinking and visiting friends.


Do adults need naps during the day and why is it so beneficial for children?

Dreams on the topic

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