Blood cells from an 80-year-old donor become stem cells with a molecular age under 20

Blood cells from 80-year-old donor become stem cells with molecular age under 20

Researchers report that blood cells taken from an 80-year-old donor were reprogrammed into stem cells whose molecular age measures under 20. The finding suggests cellular aging may be partly reversible, though the work remains early and its implications for longevity and regenerative medicine are still being debated.