When we sleep, our brain continues to work, albeit in the "background", since the subconscious mind never sleeps. There are not so many reliable facts about dreams and dreams, despite the fact that the very phenomenon of sleep has been studied for many centuries. Nevertheless, something interesting on this topic is already known.
Most of the world's inhabitants sleep between 20:00 and 01:00 UTC. The peak of dreams falls on 01:00 Moscow time - during this period, more than 57% of earthlings rest and dream in their beds.
Sleep sensitivity in humans depends on an area of the brain called the thalamus - it is able to generate impulses that filter out external noises that can wake a sleeping person.
The Beatles member Paul McCartney claims that he first heard the melody, which later became the hit "Yesterday", in a dream.
Some animals, such as cows, horses and elephants, can sleep while standing due to the physiology of their knees. Flamingos have gone even further - they sleep not just standing, but standing on one leg. Note that these animals can sleep and lie down when they feel completely safe.
The Hungarian soldier, who was shot in the temple during the First World War, survived, but was never able to fully sleep again. Despite insomnia, the man felt good and lived for about 40 more years.
Hippos can sleep underwater - they float to the surface every 3-5 minutes to breathe air, but they don't wake up.
For people with the hDEC2 gene mutation, it is enough to sleep 4 hours a day for normal functioning.
Deaf people in a dream can "talk" with their hands in sign language - just like people without health problems talk in a dream. People born blind see dreams without a visual picture, and the dreams of the blind in the process of life are no different from the dreams of sighted people.
Storks, black swifts and dusky terns, tired during a long flight, can fall asleep for 10 minutes right in the air.
In London in 2011, they staged the play "Lullaby", during which the audience sat on their beds and fell asleep. The aim of the actors was to get them to sleep well. In the morning, the theatergoers who had slept were fed breakfast, which was included in the ticket price.
The brain hemispheres of dolphins and whales sleep in turn so that animals can float to the surface and breathe as they rest.
The famous artist Salvador Dali often fell asleep, sitting on a chair and clutching a heavy key in his hand. When he fell asleep soundly, the key fell to the floor with a loud clatter and woke the painter. According to the artist, after waking up, he easily found a solution to various problems and was filled with new ideas for creativity.
Slightly more than 10% of sighted people do not see color dreams.
Men most often dream of other representatives of the stronger sex, and women - of both sexes in equal proportions.
After 5 minutes after waking up, a person is able to remember his dream only by half, and after 10 minutes - only by 10%.
People spend on average a third of their lives sleeping.
Man is the only mammal capable of consciously depriving himself of sleep.
People who sleep less than 8 hours a day are more likely to overeat and become obese.
After 16 hours without sleep, people have a noticeable decrease in working capacity.
Some scientists believe in the existence of prophetic dreams that contain true information about the future.
People cannot see strangers in their dreams - they have met all the characters in their dreams at least once in reality.
People begin to dream about an hour and a half after falling asleep. Dreams take 15-20% of the total time spent in a dream.
The longest dream recorded by scientists lasted 3 hours and 8 minutes. About what the record holder dreamed at this moment, nothing is known.