To clear the air, below are a few facts all pool owners should know: 1  Pool liners do not cost $10,000. 2  Pool liners generally do not last over 20 years. 3  While tears can happen, they are not likely.  Vinyl pool liners can look just as beautiful as fiberglass or concrete.
Chronic stress accelerates premature aging by shortening DNA telomeres. A wide range of studies have shown that the stress caused by things like: untreated depression, social isolation, long-term unemployment, anxiety attacks... can speed-up the aging process by shortening the length of each DNA strand.
Telomerase replaces short bits of DNA known as telomeres, which are otherwise shortened when a cell divides via mitosis. In normal circumstances, absent telomerase, if a cell divides recursively, at some point the progeny reach their Hayflick limit, which is believed to be between 50â70 cell divisions.elomerase is a reverse transcriptase enzyme that carries its own RNA molecule (with the pattern of  C C C A A U C C C  in vertebrates), which is used as a template when it elongates telomeres.