Ageing isn’t fixed – we can manipulate it to live longer http://t.co/dAI6kS6cCt via @ConversationUK — sylvain giraud (@GiraudSylvain) September 23, 2014 here are hypotheses that damage to DNA probably affects cell renewal in stem cells, which in turn prevents repair in the body and contributes to loss of viability. ThenContinue Reading