Anti-Aging Benefits with Exercise
According to a new study, funded by The German
Research Association and the University of
Saarland, and published in "Circulation:
Journal of the American Heart Association,"
intense exercise acts to help prevent
the shortening of telomeres. The
gradual shortening of telomeres through cell
divisions leads to aging at the cellular level.
The study findings were released online Nov.
30, 2009 in advance of publication in an upcoming
print issue of "Circulation". It
follows up on the work done by Elizabeth H.
Blackburn, Carol W. Greider, and Jack W. Szostak,
who won the 2009 Nobel Prize in Physiology
of Medicine for their work in showing how
during cell division, telomere length is shortened.
are the protective ends of chromosomes.
They have been compared to sort of a plastic
tip found at the end of a shoelace that over
time becomes worn and frayed with every cell
division. When the telomeres become critically
short, the cell undergoes death. Short telomeres
limit the number of cell divisions.
In this clinical
study, blood samples were taken from two groups
of professional athletes and two groups who
were healthy nonsmokers but not regular exercisers.
Professional runners from the German National
Team of Track and Field were evaluated against
nonsmokers who were healthy but did not work
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