The purpose of the work was to study reactive astenia and its correction in athletes. As an effect for 3 months the author 's method of prevention of reactive asthenia in athletes of 13-15 years was used, consisting of 3 stages. A significant increase in the indicator of involvement, resilience and internality of failures in the subjects was revealed. The results of the study showed that correction of asthenic syndrome allows to increase competitive reliability of young athletes and their self-esteem of health. Positive dynamics were achieved in indicators of well-being, resilience and internality of achievements against the background of reduced fatigue. The results of correlation analysis of a number of parameters are presented, which confirmed success of tested method of prevention of reactive astenia in athletes.