Peculiarities of adaptive mechanisms in young people with different chronotype

Abstract

Several physiological functions, including body temperature, sleep, physical activity, mood, and cognition are controlled by circadian clock genes, and abnormal circadian rhythms are associated with the development of lifestyle-related diseases. In our research the adaptive capabilities of the body and a causal relationship of circadian rhythm disturbances depending on the person’s chronotype in case of changing time zones have been investigated. An activation of adaptive mechanisms due to increased heart rate, respiratory rate and increased index of Kerdo have been revealed under sharp change in climate and time zones with the most pronounced changes in the group of people with a predominant activity in the evening hours; they required longer time to adapt and return to their previous mode, and thus showing higher risk of pathological desynchronosis development, but persons with an intermediate chronotype have the least violations, which indicates sufficient level of adaptive capabilities of the body.