What else we didn't know about sleep

Why are we sleeping? Yes, the question sounds stupid, and the answer to it would seem obvious, but in fact, scientists still cannot give an unambiguous answer. However, over the past few decades, researchers using modern technology have been able to measure brain waves and understand a little what happens in our heads at night. Here are some fun facts about our nightlife.

The average life of a mattress is 6-8 years. Thus, he has a lot of time to collect a lot of all sorts of nonsense. One study even found a link between mattress and sudden infant death syndrome.

Another study found that people who sleep 6-7 hours live longer than those who sleep 8 hours.

Dolphins and whales are only half asleep. Their cerebral hemispheres work in turn, so they can float up in their sleep to breathe.

The world record for wakefulness was set by 17-year-old Randy Gardner in 1964. He did not sleep for 264 hours and 12 minutes. The record was set deliberately and without any stimulants.

Are you suffering from any pain? According to one study, pain tolerance decreases with lack of sleep. Consider this as another reason to take some extra rest when you are battling an illness.

Although people born blind do not dream in pictures, they have auditory, tactile, and olfactory sensations during sleep.

There is a concept of fear of sleep - somniphobia.

12% of people have black and white dreams. However, before the advent of color television, the number of such people was 75%.

You can only dream of the person you have already seen in your life.

Snoring is a common problem. About 40% of men and 24% of women suffer from snoring. For those who are really concerned about this, there is a surgical operation - uvulopalatopharyngoplasty, which consists in removing the uvula, part of the soft palate and tonsils. One of the possible side effects is voice changes.

Scientists have found that counting sheep is an ineffective method for getting to sleep. It's too boring, and imagining a calm landscape works much better.

Sleep experts believe there is a direct link between your favorite sleeping position and your personality traits.

You sleep about one third of your life. On average, this is 25 years.

Lack of sleep for 16 hours leads to a decrease in performance equivalent to 0.05% BAC.

The British military has found a way to reset the biological clock so that it can stay awake for up to 36 hours. This is achieved by imitating the dawn on the retina.

Every 90 minutes during REM sleep, there is a surge of electrical activity through your brain stem, just like when you are daydreaming.

The feeling when you are suddenly twitched at the moment of falling asleep is called hypnagogic twitching.

The Challenger shuttle disaster, the Chernobyl nuclear power plant accident, the Exxon oil spill - all of this, in a sense, was due to lack of sleep.

Almost everything we know about sleep, including the facts above, has been discovered in the past 30 years.