TWEET IT – http://clicktotweet.com/JVi57 Why do we age, from a biological perspective? Written and created by Mitchell Moffit (twitter @mitchellmoffit) and Gregory Brown (twitter @whalewatchmeplz). TWITTER: http://www.twitter.com/AsapSCIENCE FACEBOOK: http://www.facebook.com/AsapSCIENCE Mitchell Moffit http://www.mitchellmoffit.com http://www.twitter.com/mitchellmoffit http://www.facebook.com/mitchellmoffit Gregory Brown http://www.gregorybrownart.tumblr.com http://www.twitter.com/whalewatchmeplz Further Reading — Senesence: http://www.nature.com/nature/journal/v479/n7372/full/nature10600.html Aging Factors: http://www.sciencedirect.com/science/article/pii/S0027510711002223 Telomeres: http://www.nature.com/nm/journal/v12/n10/full/nm1006-1133.html http://www.ncbi.nlm.nih.gov/pubmed/6286143 Telomeres and Cancer: http://www.sciencedirect.com/science/article/pii/S0092867400816839 Flatworms: http://www.pnas.org/content/early/2012/02/22/1118885109.full.pdf+html