The Russian somnologist warns that this condition is not always associated with poor quality sleep at night. It often happens that a person sleeps at least 7 hours a day, does not exhaust himself with increased stress, but still feels sleepy during the day. Mikhail Poluektov, Candidate of Medical Sciences, Head of the Sleep Medicine Department of the N.N. A. Ya. Kozhevnikov Moscow State Medical University THEM. Sechenova, gives two reasons why this might be. First, daytime sleepiness may be associated with a disturbance in the structure of nighttime sleep. It happens that a person sleeps for a long time, but not enough if you evaluate sleep in terms of depth and quality. For example, during the night, he may wake up many times and for this reason, he does not feel very well during the day. This happens with obstructive sleep apnea syndrome, Poluektov said in an interview with Sputnik radio. Secondly, with some health problems, people often confuse the state of drowsiness with a feeling of weakness, asthenia, lethargy. “Asthenia is characteristic of some variants of neurosis, for some mental illnesses. If a person with such complaints of sleepiness goes to sleep during the day, he will not fall asleep, because he does not have real sleepiness, he received enough sleep during the night. Often periods of sleepiness occur, for example, with depression. A separate condition is seasonal affective disorder. The tendency to general weakness occurs in the autumn-winter period, when there is little light, but this goes away by itself as soon as there is more light,”said the somnologist. In addition, according to the expert, increased sleepiness (hypersomnia) is characteristic of people who suffer from some rare diseases. For example, when it comes to narcolepsy (in this disease, the brain lacks energy and therefore a person periodically needs to lie down and take a nap). There are even rarer forms of hypersomnia. The doctor cited Sleeping Beauty Syndrome, or Kleine-Lewin Syndrome as an example: “It happens more often in men, but it also occurs in girls when their need for sleep increases sharply and they fall asleep for several days or weeks. They can wake up, eat, wash and go back to sleep. Then it goes away and they feel normal, and then it repeats again. This is a mysterious rare disease, its causes are unknown. " By the way, recently a somnologist talked about what should not be done in bed (otherwise bad sleep is guaranteed). Photo: Depositphotos About education without boring - "Letidor" is now on TikTok! Subscribe!