#1 - we already know that telomere lengthening is required for life extension, but it&#x27;s definitely not the only factor. The effects of short telomeres are rather bad:<p><a href="http:&#x2F;&#x2F;www.ncbi.nlm.nih.gov&#x2F;pubmed&#x2F;23127607" rel="nofollow">http:&#x2F;&#x2F;www.ncbi.nlm.nih.gov&#x2F;pubmed&#x2F;23127607</a>