Evolution and ageing.

Acute non-invasive ventilation in older patients: medical evolution and improvement in survival of the un-fittest.

THE EVOLUTIONARY ECOLOGY OF SENESCENCE Sexual selection, sexual conflict and the evolution of ageing and life span

1. Classic evolutionary models interpret ageing as a cost of reproduction, but evolutionary research has thus far largely neglected the conceptual links between the evolution of ageing and a key mode of selection on male and female reproductive strategies – sexual selection and sexual conflict. 2. We synthesize ideas and evidence linking sex and ageing, and make the case that a focus on this fa...

Sexual selection affects the evolution of lifespan and ageing in the decorated cricket Gryllodes sigillatus.

Recent work suggests that sexual selection can influence the evolution of ageing and lifespan by shaping the optimal timing and relative costliness of reproductive effort in the sexes. We used inbred lines of the decorated cricket, Gryllodes sigillatus, to estimate the genetic (co)variance between age-dependent reproductive effort, lifespan, and ageing within and between the sexes. Sexual selec...

Sexual selection, sexual conflict and the evolution of ageing and life span

1. Classic evolutionary models interpret ageing as a cost of reproduction, but evolutionary research has thus far largely neglected the conceptual links between the evolution of ageing and a key mode of selection on male and female reproductive strategies – sexual selection and sexual conflict. 2. We synthesize ideas and evidence linking sex and ageing, and make the case that a focus on this fa...

Beyond the evolutionary theory of ageing, from functional genomics to evo-gero.

By the mid 1970s, the mechanisms by which ageing can evolve had a secure theoretical basis in population genetics. Here, we discuss how subsequent evolutionary work has focussed on testing and extending this theory, and on attempting to integrate it with other emerging facets of the biology of ageing, such as genetic studies of long-lived mutants and of phenotypic plasticity in ageing, such as ...

The Future of Ageing and Its Health Care Costs: A Warning for Health System

This article is focused on ageing and the rapid ageing population growth, from future health care costs prospectus. It reviews ageing population statistics in several courtiers as well as Iran, to illustrate the significance of the ageing population growth in the next decades. Nevertheless, the health care costs for elderly people are described and the considerable differences between health ca...