The manual outlines current aspects of practical mental hygiene. Recommendations are presented on the main sections of individual mental hygiene: education and training, work and rest, and others, as well as personal mental hygiene. The manual includes basic psychohygienic self-help techniques: volitional, rational, mnemonic, emotional, etc. The main methods of mental self-regulation are described, in particular the method of autogenic training, methods of neuromuscular relaxation, breathing rhythm control, etc. The manual contains recommendations on optimal styles of communication with people , belonging to individual psychological types, as well as having pronounced individual personality characteristics (accentuations). The manual is intended for students of psychology departments, medical universities, students of postgraduate education departments studying medical psychology and psychiatry, clinical psychologists in their practical work, as well as for everyone interested in practical mental hygiene and psychology.