In order to understand what
[You must be registered and logged in to see this link.]are we need to go into the cell of our body. There are over 100
trillions cells in our body that are constantly dividing themselves to
give us life. This is done by genes sitting on the 23 pairs of
chromosomes found in the nucleus of each and every cell. The
chromosomes are long sequences of DNA that contain all our genetic
codes. Each pair of chromosomes consists of one from our mother and one
from our father and are twisted around each other to form a structure
called the double helix.
[You must be registered and logged in to see this link.]At the end of those Chromosomes are what’s called the
[You must be registered and logged in to see this link.]or translated from old Greek- end parts. They have no genetic function
but are simply stretches of DNA that protect the rest of the
chromosome. These little bits of DNA are critical to healthy cell
function. They become shorter each time the cell divides. When they get
too short, cells become enable replicate and can no longer divide. This
is what we call Old Age and Death.
[You must be registered and logged in to see this link.]Recently scientists have studied this phenomenon. Research has shown
that people over 60 that have long telomeres experience greater heart
and immune system health than 60 year olds with shorter telomeres. This
shows that long telomeres support health.
First observed by Professor Lenhard Hayflick in 1961, he discovered
that cells cannot divide beyond a specific number of times. This is
called the Hayflick Limit. Cells reaching this limit become old and
die. Although Professor Hayflick discovered this important scientific
principle, he did not know the cause of it.
30 years later the role of telomeres in cellular aging was finally
understood. In 1990, Calvin Harley at McMaster University in Canada and
Carol Greider at Cold Spring Harbor Laboratory in the USA discovered
that
[You must be registered and logged in to see this link.] shortening goes along with the aging process and is the direct cause of cells reaching the Hayflick Limit.
consult:
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