#1 - we already know that telomere lengthening is required for life extension, but it's definitely not the only factor. The effects of short telomeres are rathe

#1 - we already know that telomere lengthening is required for life extension, but it's definitely not the only factor. The effects of short telomeres are rather bad: http://www.ncbi.nlm.nih.gov/pubmed/23127607 http://www.ncbi.nlm.nih.gov/pubmed/23127607