The modern rhythm of life in a highly competitive environment places extremely high demands on our adaptability and productivity. Returning to an active work schedule after a vacation, weekend or long stressful periods is very often accompanied by a feeling of deep physiological and psycho-emotional exhaustion. People complain of chronic fatigue, "fog in the head", irritability, loss of motivation, sleep disturbances and heaviness in the body.

Millions of people wake up tired every day. They drink liters of coffee, take energy drinks during the day, and at night they can't fall asleep without a sleeping pill. The modern rhythm of life teaches us to attribute chronic fatigue and sleep disorders to stress, overwork, or age. However, evidence-based medicine makes a revolutionary discovery: the real generator of our energy and the "biological clock" are not in the brain, but in the gastrointestinal tract.