Key points from article :
Mice received bone marrow transplants from young donors every 3 months from age 6 months.
Saw increase in mean lifespan of 34%.
If the same worked in humans (with equivalent transplants every 9 years from age 18) that would length life expectancy by of 27 humans years.
Could use cryopreservation own stem cells, taken in a young age, later autologous transplantation.
The study was published in the Journal of Biophysics.