In the book, the author presents an opinion on some current problems in medicine, the possibility of using simple, accessible methods of treating and preventing diseases. Since the occurrence of diseases is often associated with the consumption of hormone-modified, sugar-containing and other foods, it recommends the “antitoxic” use of not only artesian water, but also moderately hot pasteurized water. According to the author’s observations, since 2017, the use of pasteurized water recommended for patients, the “thermal factor” of which has a powerful anti-inflammatory, antibacterial, antiviral effect, can be used in the complex of prevention and treatment of not only gastrointestinal and acute respiratory viral diseases, but also chlamydia, coronavirus and other infections. The administration of the liters website is not responsible for the information provided. There may be medical contraindications; consultation with a specialist is required.