Summer heat often brings with it not only a dream vacation, but also exhausting, sleepless nights. When the temperature in the bedroom does not allow us to relax, we toss and turn in bed, and in the morning we feel broken. However, fatigue and decreased concentration are only the visible tip of the iceberg. Modern 4P medicine proves that the real blow from lack of sleep is taken by our "superorgan" - the microbiome of the gastrointestinal tract.