Age-Related Alterations of Non-Markovian Effects in Stochastic Dynamics of Heart Rate Variability

The ageing of a human organism has been in the focus of attention in physics of live systems over the past years. One of the most significant systems of vital activity of a human body is its cardiovascular system. Today there are a number of scientific studies on the problems of biological ageing of the cardiovascular human system. The latter is extremely sensitive to age-related as well as pathological changes in a human organism. Thus not only physiologists, biologists and physicians have been involved in this studies but also experts from other natural-science areas. Conditions of a human heart are estimated by means of various parameters. Thus heart rate variability (HRV) represents one of the most frequently used parameters, in cardiology. Nowadays there are different methods of studying heart rate variability dynamics.