7 incredible scientific facts about sleep

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Nervous at work, a new season of the favorite series came out, fell in love – and now insomnia does not allow to live and function normally. Anyway, so many things are happening in the world that many consider wasting time as a waste. But in vain! Sleep is a unique mode of our body, which still remains a wide field for research. Next are a few interesting facts about him that can inspire a review of sleep patterns.

Men and women sleep differently

According to the National Sleep Foundation of the United States, most males are owls in their rhythm of sleep and wakefulness, and females are larks. This is due to differences in the overall circadian rhythm. In men, it lasts 24 hours or longer; internal women's watches do not reach such indicators. This explains the different level of fatigue in the evening, not to mention the night. Men recover faster after sleepless nights, but in women, frequent repetition of those leads to even greater disturbances of night rest.

The thyroid gland affects sleep

Drowsiness, irritability, insomnia, bad mood – often we tend to look for the causes of all of the above in retrograde Mercury, rather than in a state of health, for example, the thyroid gland. Small, but very important, it produces hormones that affect metabolism, thermoregulation and sleep. When the thyroid gland produces too many of its hormones, hyperthyroidism sets in. A person becomes anxious and restless, sleeps poorly. If the thyroid gland does not work well, the diagnosis changes to hypothyroidism. With him, a person feels constant fatigue, even a prolonged sleep does not help.

Sleep strengthens the immune system

There are many fruits containing vitamin C, washing your hands with soap, getting a flu shot – all these are mandatory actions for those who do not want to get sick. Plus a good dream. In our latitudes, the flu is hosted from October to January. During this period, you should get enough sleep, allowing yourself a rest of 7-8 hours. Without enough sleep, fewer cytokines are produced in the body, molecules that prevent inflammation, regulate cellular and humoral immunity.

Lack of sleep reduces empathy

In 2018, a group of scientists at the University of California at Los Angeles investigated the effect of lack of sleep on the cognitive abilities of experimental subjects and their emotional state. Two groups took part in the experiment. The participants of the first slept for 7 hours, those who were not lucky enough to get into the second received a portion of sound stimuli and slept several hours less. The study found that sleep loss affects brain regions responsible for understanding other people's intentions and other emotions.

During sleep, the brain edits memories

When a person is awake, the brain collects information, and when sleeping, there is a kind of editing experienced during the day. The brain never rests. He simply turns off consciousness to do analysis and structuring. This happens during the deep sleep phase. The process mechanism, quite complex and requiring a detailed description, was discovered by American scientists from the University of California at 2016.

In a dream, a person goes a little crazy

Every time we go into the REM sleep phase, we literally go crazy. By scientific definition, psychosis is a condition characterized by hallucinations and delirium. Dreams, according to some researchers, are a psychotic state: we fully believe in what is not, recognize that people and places can change dramatically.

When we sleep, the senses do not stop working

During REM sleep, the Varolian bridge, the department of the brain stem, is especially active. Electric impulses from it are often directed to that part of the brain that controls the muscles of the eyes and ears. Our eyelids usually remain closed, but the eyeballs rotate from side to side, responding to the intensity of what is happening in a dream. During the seeming rest, the inner ears are also active. Like the parts of the brain that generate movement. This is why it often feels like flying or falling in a dream.

See also: Study: Scientists told how to quickly fall asleep and improve sleep quality


                                                            mental health

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