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growth of other cells. When fibroblasts turn off, they
BIOLOGY OF AGING: RESEARCH TODAY FOR A HEALTHIER TOMORROW 19
FIBROBLA
TELOMERE LENGTH:
HEALTH SPAN VS. LIFESPAN?
STS PHO
Aging biologists are investigating
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whether humans' telomere length
is associated with lifespan, health
: C
span, or both. In one study of people
OUR
age 85 years and older, researchers
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found telomere length was not
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associated with longevity, at least not
in the oldest-old. In another study,