A collection of articles devoted to the revision of the old (pre-revolutionary) rules of sexual behavior, since this or that resolution of the sexual issue by the class is a way of wasting class wealth. Obviously, the proletariat, revising all the old exploitative values, must change the old sexual foundations. But it is necessary not to deviate from an objectively scientific point of view. Therefore, the collection consists of articles written by doctors. In general, the book is addressed to young people who are largely concerned about the sexual issue. The final idea is only complete sexual abstinence until the onset of full and complete puberty (before marriage), maintains physical and nervous health intact, ensures complete happiness in family life and healthy offspring, thereby serving the benefit of society and the state and protecting humanity from degeneration.