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Smoking may erode your problem-solving capacity
Tuesday February 07, 2012 10:17:27 PM,
IANS
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London: Smoking may be
a risk factor for dementia among the elderly that erodes their
problem-solving capacity and self-control and makes them see
things which are not there.
Severine Sabia, University College London and colleagues based
their findings on the Whitehall II cohort study, involving British
Civil Service employees. They examined the link between smoking
and cognitive decline in the transition from midlife to old age.
They obtained data from 5,099 men and 2,137 women with average age
of 56 years at the first cognitive assessment, the Archives of
General Psychiatry reports.
The authors note their analysis presents four key findings. They
suggest smoking in men is tied to more rapid cognitive decline and
that men who continued to smoke over the follow-up experienced
greater decline in all cognitive tests, according to a University
College statement.
Men who quit smoking in the 10 years preceding the first cognitive
measure were still at risk of greater cognitive decline,
especially in executive function (an umbrella term for various
complex cognitive processes involved in achieving a particular
goal).
However, long-term ex-smokers did not show faster cognitive
decline. "Finally, our results show that the association between
smoking and cognition, particularly at older ages, is likely to be
underestimated owing to higher risk of death and dropout among
smokers," the authors comment.
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