Abstract. Acceleration (acceleration of development) is an important sociobiological phenomenon observed in modern society and has a great impact on the physical and mental development of a person. In this article, the impact of the acceleration process on the human psyche, as well as the mental changes during childhood, adolescence and adulthood are widely covered. The article also analyzes social, cultural and environmental factors of acceleration. An in-depth study of the acceleration process helps to optimize the maintenance and development of a person's mental health.