In our research we brought out the age difference in the group of long-livers and the continuous character of the
biochemical basal metabolism indexes changing. The results allowed us to carry out the polynominal high-powered
approximation to study the dynamics of laboratory indexes. We revealed the progressive reduction of the cholesterol,
triglycerides, glucose and creatinine levels starting from 90 years of age, and this reduction showed the non-linear
character with interchange of local minimums and maximums. During the speed characteristics analysis we revealed the
cooccurrence of the speed maximums of all the examined biochemical indexes, except the speed of changing the
concentration of cholesterol, which maximum took the lead over the other indexes by four years. The phase-plane
portrait analysis of the regulatory systems on the plane "time - speed" showed the unfulfilled attempt of system
stabilization by all the searched parameters nearby the special spot - "stable focus". The standard deviation values
analysis of the researched parameters showed their progressive reduction in the long-livers. That fact can be considered
as the regulatory systems physiological "backlash" reduction among the centenarians.
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