(From EurekAlert). Modern investigations into accelerated aging disorders (Progeria and Werner's syndrome) are teaching scientists a great deal about the way in which the aging process works. The links between aging, telomeres - the protective caps on the ends of chromosomes that get shorter with each cell division - and cancer have been receiving a lot of attention in recent years. The hurdles overcome during the development of a mouse model for Werner's syndrome demonstrate how far we've come in our ability to manipulate genes and telomeres in living organisms. This field of study is an important one - it could eventually yield therapies to prevent both cancer and aging.