The modern rhythm of life dictates its rules to us: we work late, sacrifice sleep for deadlines, eat breakfast on the run, and eat dinner well past midnight. To our conscious minds, such chaos may seem like a sign of productivity or an inevitable norm of the urbanized world. However, for our bodies, or more precisely, for our microbiome, the lack of a clear schedule is a real disaster.

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.