Not all cells in the adult body do divide, most of them I think divide only rarely if ever. Cells that divide more regularly generally express telomerase to keep their telomeres from running out. Telomeres running out may still be an issue though, so there are people looking at ways of lengthening them via telomerase expression.
Not all cells in the adult body do divide, most of them I think divide only rarely if ever. Cells that divide more regularly generally express telomerase to keep their telomeres from running out. Telomeres running out may still be an issue though, so there are people looking at ways of lengthening them via telomerase expression.