This article from Betterhumans is a clever illustration of the role telomeres play in aging. You will recall a flurry of articles a few months ago on telomeres and aging; researchers have been back in the labs since then, it seems. A good basic introduction to telomeres and why you should know about them is at InfoAging. This article opens up some intriguing possibilities for comparatively quickly testing the effects of telomere extension on skin grafts. If it works to halt premature aging in the grafts, then that would be strong evidence for trying the procedure elsewhere.