Stress makes our stomach hurt. When we are in love, we feel "butterflies in our stomach". Before an important event, we feel nauseous, and when something worries us, we feel heaviness in our stomach. All these everyday sensations are direct evidence that our mind and emotions are inextricably linked to our intestines.

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.