OREANDA-NEWS. The head of the department of sleep medicine at Sechenov University, sleep doctor Mikhail Poluektov, in an interview with Sputnik radio, spoke about an unexpected symptom of coronavirus - sleep problems that occur in 37 percent of those infected with coronavirus. However, this phenomenon is also common among healthy Russians, because against the background of the pandemic, people began to sleep worse due to anxiety.

According to the doctor, patients with COVID-19 lose sleep or experience its deterioration, and then, as the disease progresses, they start sleeping more than usual.

As the expert noted, those who were not sick with COVID-19 also began to sleep worse due to changes in their usual life. So, against the background of self-isolation, people began to move less and feel a greater psychological burden due to disturbing news. According to the doctor, such an increased expectation of something unpleasant is the enemy of sleep. It has been shown that approximately 30 percent of people who did not get the coronavirus suffered from sleep disturbance.

The head of the Sleep Medicine Center of the Lomonosov Moscow State University, Candidate of Medical Sciences, Alexander Kalinkin, previously spoke about the negative impact of lack of sleep on human immunity. According to him, if a person sleeps less than five hours, then his chances of catching a viral infection increase by 250 percent compared to people who sleep the necessary seven to nine hours.