Almost all living beings are endowed with the ability to sense and measure time. It was this property that helped them survive in the struggle for existence. Flowering of plants, seasonal migrations of animals and birds, alternation of periods of sleep and wakefulness - all these are manifestations of biological rhythms. For a modern resident of a metropolis, who spends little time in the fresh air and for whom the line between day and night is increasingly blurred, biorhythmic connections with nature are significantly weakened . Even ordinary weather fluctuations and, even more so, changes in climatic conditions become a cause of health problems for him. The young scientific disciplines that are actively developing these days - chronobiology, chronomedicine and medical meteorology - are designed to help a person adapt to the environment again and restore the broken biological clock. The author of the book introduces the reader to the latest scientific data on the influence of various natural factors and our biological clock on human health. And the unique practical recommendations given in the book will help to significantly improve your well-being, prevent and cure a variety of ailments, including coping with their exacerbations when the weather and climate zone changes. Attention! The information contained in the book cannot serve as a substitute for medical advice. You should consult with a specialist before taking any recommended action.