A Quote by Carol W. Greider

In 1978, Elizabeth Blackburn, working with Joe Gall, identified the DNA sequence of telomeres. Every time a cell divides, it gets shorter. But telomeres usually don't. So there must be something happening to the telomeres to keep their length in equilibrium.
Telomeres are the ends of our chromosomes that control how long we live. As telomeres become shorter, then cells age and die more quickly. In simple terms, as your telomeres get shorter, your life gets shorter.
We know that people who are born with shorter telomeres than normal also have a shorter lifespan. We know that shorter telomeres can cause a shorter lifespan.
Exercise mitigates the effects of stress - and stress, we know, shortens telomeres. In fact, early studies indicate that stress reduction techniques like meditation help people maintain the length of their telomeres.
It is unlikely that changes in telomeres are influencing the lifespan of the worm. That is because telomeres only shorten when cells divide. Most of the cells of the worm stop dividing when the worm becomes an adult.
This enzyme, called telomerase, slows the rate at which telomeres degrade, and research indicates that healthy people with longer telomeres have less risk of developing the common illnesses of aging - like heart disease, diabetes, and cancer, which are three big killers today.
Telomeres are the protective caps at the ends of chromosomes in cells. Chromosomes carry the genetic information. Telomeres are buffers. They are like the tips of shoelaces. If you lose the tips, the ends start fraying.
What I found out on Christmas Day 1984, through biochemical evidence, was that telomeres could be lengthened by the enzyme we called telomerase, which keeps the telomeres from wearing down. After I found that out, I went home and put on Bruce Springsteen's 'Born in the USA,' which was just out, and I danced and danced and danced.
In my early work, our molecular views of telomeres were first focused on the DNA.
We can detect very small differences in telomere length, and it is a very simple and fast technique where many samples can be analysed at the same time. Most importantly, we are able to determine the presence of dangerous telomeres - those that are very short.
Chronic emotional stress shortens your telomeres.
Basically, when you look at different types of cells, such as fibroblasts, which form connective tissue, or epithelial cells, from saliva, you see general correlations within a person. If telomeres are up for one cell type, they're up for others overall.
In 2004, results from a study that I worked on with colleagues at the University of California, San Francisco, linked chronic stress to shortening of telomeres.
For me, arguably the story of telomeres and telomerase began thousands of years ago, in the cornfields of the Maya highlands of Central America.
In my lab, we're finding that psychological stress actually ages cells, which can be seen when you measure the wearing down of the tips of the chromosomes, those telomeres.
It will be useful for you to know your biological age and maybe to change your lifestyle habits if you find you have short telomeres.
Work by Maria Blasco, Calvin Harley, Michael Fossel, Woodring Wright and Shay and Ronald Depinho in particular are of interest but there are literally thousands of articles relating to telomerase, telomeres and the biology behind it.
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