This undated image made available by the NIH's National Cancer Institute shows the 46 human chromosomes in blue, with telomeres appearing as white points on the ends. Some previous studies have ... more 
This undated image made available by the NIH's National Cancer Institute shows the 46 human chromosomes in blue, with telomeres appearing as white points on the ends. Some previous studies have associated having longer telomeres with better health and longer lives. Telomeres haven't been proven to cause those benefits in the general population, but a number of researchers think they may hold secrets for things like longevity and cancer. (AP Photo/NIH, National Cancer Institute, Hesed Padilla-Nash, Thomas Ried) less 
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Associated Press | Photo By NIH, National Cancer Institute, Hesed Padilla-Nash, Thomas Ried
Mon, Jun 11, 2012 4:36 PM EDT