Researchers have developed a new model to explain the evolution of aging, addressing the existence of immortal species like certain hydras that defy traditional aging theories. This model challenges the standard view that natural selection favors traits enhancing early reproductive success, leading to biological systems that deteriorate over time. Instead, it proposes a feedback loop where genes influencing mortality throughout an organism’s lifespan can promote further reductions in senescence.

This innovative approach integrates recent insights into damage accumulation with classic theories of senescence evolution, such as mutation accumulation and antagonistic pleiotropy. By considering the dynamics of external mortality risks and internal damage, the model offers a more comprehensive understanding of aging processes and phenomena like Peto’s paradox and negligible senescence, which have remained enigmatic in previous frameworks.

For professionals in the longevity field, this model opens avenues for exploring therapeutic strategies that might leverage mechanisms of immortality and senescence retardation. I highly recommend reading the full article to delve deeper into these compelling findings.

Source: fightaging.org