POSTED: 01:30 a.m. HST, Feb 01, 2013
~~<p>How long are your telomeres?</p>
How long are your telomeres?
A telomere shortening mechanism limits cells to a fixed number of divisions, and animal studies suggest that this is responsible for aging on the cellular level. In other words, it may be the mechanism that sets a limit on life spans. Login for more...