Origen: Sangre, sudor y lágrimas por la donación de sangre en Madrid | Madrid | EL PAÍS
sangre
These results also hint that one day, it may be possible to slow down the process of ageing by replenishing the body with stem cells taken from individuals when they were much younger. “If I took a sample now and gave it back to myself when I’m older, I would have long telomeres again- although it might only be possible with blood,