Man is a child of nature and his existence is subject to cosmic rhythms. The phases of the moon, the change of seasons, the alternation of day and night - all this has a positive or negative effect on the human body. The famous health specialist Gennady Malakhov talks about the most suitable periods for treatment, cleansing and therapeutic fasting, and about the influence of biorhythms on human life. Accurate and detailed descriptions of health-improving techniques will allow readers to apply the acquired knowledge in practice, and letters to readers will help to avoid mistakes and pave a direct path to health.