In his book, Professor I.P. Neumyvakin talks about a plant that is very respected and widely used by both folk and official medicine - St. John's wort. Recipes for the preparation and use of home remedies and preventive drugs from St. John's wort are given. At the same time, the author draws attention to the fact that health is determined not so much by the success of the treatment of a disease as by a healthy lifestyle in general, in particular, proper nutrition and the necessary motor activity.