- Robert Preidt Latest articles by - Robert Preidt Stem Cell Loss in Aging Brain May Bring Poorer Memory By - Robert Preidt published 23 December 06 Health Sign up for the Live Science daily newsletter nowGet the world’s most fascinating discoveries delivered straight to your inbox.Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors LATEST ARTICLES1Robots: Facts about machines that can walk, talk or do tasks that humans can't (or won't)2What is xeroderma pigmentosum? The rare genetic disorder that forces people to avoid sunlight3Diagnostic dilemma: A rash 'migrated' across a man's body from his anus4China's '2D' chip could soon be used to make silicon-free chips5Catquistadors: Oldest known domestic cats in the US died off Florida coast in a 1559 Spanish shipwreck
