During sleep in a state of complete rest, the level of anabolic processes increases. The onset of sleep also depends on the lighting of the day and the room where we sleep. Towards evening, the human body begins to produce the hormone melatonin. The increase in hormone levels also makes us an irresistible desire to sleep.
Before bedtime, a state of drowsiness occurs – falling asleep, during which there is a decrease in brain activity. Which is characterized by: a decrease in the level of consciousness, yawning, a decrease in sensitivity, the heart rate becomes slower, etc.
But everyone can fall asleep quickly and calmly. It’s getting harder and harder to fall asleep. Many have sleep disturbances . A person cannot fall asleep, sleep well, and feel relaxed after a night’s sleep.
Normal sleep disturbance can develop into chronic insomnia over time. Insomnia can have very dangerous forms of illness and develop into mental disorders, respiratory distress or unexplained leg movements at night. If you have disturbed sleep and cannot sleep during the night without waking up, you should consult your doctor for advice.
Anxiety during insomnia dramatically increases blood sugar levels. Also, people with sleep disorders face such problems as chronic fatigue, low concentration, and sometimes arrhythmia.
Insomnia can be associated with various diseases. These include functional disorders of the nervous system associated with severe mental trauma, neuroses, psychosis, organic diseases of the brain, diseases of internal organs and endocrine glands. Restless sleep leads us to depression, causes feelings of depression and dissatisfaction.