Quail Bred to Reproduce More Aged Faster, Supporting a Core Theory of Aging
Researchers selectively bred Japanese quail for higher or lower reproductive effort across several generations. By generations five and six, the high-reproduction birds died sooner. The lifespan difference came from faster aging rates, not from being more fragile to begin with. This is some of the cleanest experimental evidence in vertebrates that investing more in reproduction comes at a real cost to longevity.
Haftungsausschluss: Forschungszusammenfassungen dienen nur zu Informationszwecken und stellen keine medizinische Beratung dar. Konsultiere immer einen qualifizierten Arzt, bevor du Änderungen an deiner Gesundheitsroutine vornimmst.
Verwandte Studien
Alle StudienFat Tissue Controls Lifespan Through Insulin Signaling in Fruit Flies
In fruit flies, dialing down a gene called Dicer-1 in fat tissue extended lifespan.
Eight Hyped Compounds Failed to Extend Lifespan in a Major Mouse Study
The NIA's Interventions Testing Program tested eight compounds across three lab sites in genetically diverse mice.
Fish That Age Fast Reveal Predictable 'Life Stages' in Aging
Scientists tracked African killifish behavior continuously from adolescence to death.