31 Mar '13, 3pm

How to Slow Down Your Genetic Clock: There has been a great deal of study in recent years about what causes us...

How to Slow Down Your Genetic Clock: There has been a great deal of study in recent years about what causes us...

There has been a great deal of study in recent years about what causes us to age, and whether it’s possible to slow down our genetic clock. For many years it was thought that cells were immortal if given an ideal environment. This long-held belief was discarded in the early 1960s when Dr. Leonard Hayflick observed that human fibroblasts, a type of cell in tissue culture, would stop dividing after about fifty times, a phenomenon that became known as “the Hayflick limit.” As these cells approach fifty divisions, they begin looking old. They become larger and accumulate an increased amount of lipofuscin, the yellow pigment responsible for “age-spots”—those brownish spots that appear on the skin as the result of cellular debris and lipofuscin clumping together. Your Genetic Clock Is Ticking Based on the Hayflick limit, experts on aging have theorized that there is a genetic cl...

Full article: http://www.care2.com/greenliving/how-to-slow-down-your-ge...

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