Biodemography is a multidisciplinary approach, integrating biological
knowledge (studies on human biology and animal models) with
demographic research on human longevity and survival. Biodemographic
studies are important for understanding the driving forces of the
current longevity revolution (dramatic increase in human life
expectancy), forecasting the future of human longevity, and
identification of new strategies for further increase in healthy and
productive life span.Biodemographic studies have found a remarkable
similarity in survival dynamics between humans and laboratory animals.
Specifically, three general biodemographic laws of survival are
found:The Gompertzâ€"Makeham law states that death rate is a sum of
age-independent component (Makeham term) and age-dependent component
(Gompertz function), which increases exponentially with age.The
compensation law of mortality (late-life mortality convergence) states
that the relative differences in death rates between different
populations of the same biological species are decreasing with age,
because the higher initial death rates are compensated by lower pace
of their increase with age.
knowledge (studies on human biology and animal models) with
demographic research on human longevity and survival. Biodemographic
studies are important for understanding the driving forces of the
current longevity revolution (dramatic increase in human life
expectancy), forecasting the future of human longevity, and
identification of new strategies for further increase in healthy and
productive life span.Biodemographic studies have found a remarkable
similarity in survival dynamics between humans and laboratory animals.
Specifically, three general biodemographic laws of survival are
found:The Gompertzâ€"Makeham law states that death rate is a sum of
age-independent component (Makeham term) and age-dependent component
(Gompertz function), which increases exponentially with age.The
compensation law of mortality (late-life mortality convergence) states
that the relative differences in death rates between different
populations of the same biological species are decreasing with age,
because the higher initial death rates are compensated by lower pace
of their increase with age.
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