Research aimed at curing Progeria, a rare and deadly premature aging condition, also sheds light on the normal aging process. The single genetic mutation responsible for Progeria was identified a year ago, and scientists have already determined the mechanism by which the condition operates. This BBC article explains that the mutated Lemin A gene causes cells to divide much more rapidly than normal, and thus die more quickly as they reach the normal limits for cell division. Progeria, then, does not just appear to be accelerated aging - it is accelerated aging. I elaborate a little on the meaning of this (and related) research in the latest Longevity Meme newsletter.