Why do we
age?
Researchers
have yet to unravel the mysteries with aging. But more and more is discussed
around the role of the telomeres. Telomeres are the region of repetitive
nucleotide sequences at each end of a chromatid, which protects the end of the
chromosome.
Telomeres
play an important role in cell division. As telomeres shorten, a critical
threshold is reached where the cells no longer replicate and starts to decline
and eventually dies.
Each time a
cell divides, the DNA unwraps and the information in the DNA is copied. The
process doesn t copy all of the DNA information- the telomeres are not copied.
The telomeres lose a little bit of length each time this happens.
Researcher
now understands more of the life of the telomeres and the mechanism by which
the telomeres can be restored.
There is a
lot of data from laboratory tests supporting the theory that stress and other
oxidative damage also damage the telomeres and increases the rate by which
telomeres are shorten.
Living a
healthy lifestyle by not smoking, lowering stress levels, exercising and eating
healthy are thought to slow down the rate of telomeres loss, but we can
probably not undo what is already done.
While we may
not be able to stop cell ageing, at least not yet, we can adopt lifestyle
modifications such as avoiding excessive stress and maintain ideal weight.
Healthy
living is our best defence in slowing down the sign and symptoms of ageing.
So if we eat
healthy, exercise, stress less and don't smoke we can avoid many of our chronic
diseases, age related diseases and ageing, so what 's stopping us?
Yours in Health & Fitness,
Birgitta
Yours in Health & Fitness,