How close are we to be able to act on telomerase to stop the cell aging process?

At what point does the enzyme telomerase come into play?

Telomerase is the antidote that nature has to realarge telomeres. It is not present in the adult organism, but is activated in the embryonic development and resets the telomeres of the new individual. It is interesting that cancer cells are the only immortals that exist, and that is because they have telomerase and keep their telomeres long.