Nature CommunicationsEpigenetic aging and lifespan reflect reproductive history in the Finnish Twin CohortMikaela HukkanenAnna KankaanpääAino HeikkinenJaakko KaprioRobin CristofariMiina Ollikainen2026-01-08Full textDOI https://doi.org/10.1038/s41467-025-67798-y