Science Our lifespan may be limited by the number and quality of our blood stem cells By Admin on April 25, 2014 • ( Leave a comment ) https://plus.google.com/u/0/108048325630653551776/posts/JK7moKzsnSn Please be social: Share on Flattr (Opens in new window) Flattr Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Pinterest (Opens in new window) Pinterest Share on LinkedIn (Opens in new window) LinkedIn Share on Tumblr (Opens in new window) Tumblr Share on Reddit (Opens in new window) Reddit Like Loading... Related Categories: Science