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Bone Loss Linked to Mental Decline?
Bone mass increases during childhood and adolescence, reaching
its greatest mass when
we're in our 30s and declining slowly but steadily as we age.
Women have less bone
mass than men at all ages and lose bone mass rapidly following
menopause. In fact,
after menopause this bone loss can occur at a rate of up to five
percent per year,
putting women at risk for osteoporosis (bone loss to the point
that they become thin,
brittle and prone to fracture).
If the threat of osteoporosis isn't distressing enough, consider
a recent study published
in the Journal of the Geriatric Society. More than 8,000 elderly
women (all 65 years
of age or older) evaluated the potential association between
bone mineral density (BMD)
and cognitive decline. BMD was measured at the beginning of the
study (baseline) and
again 4-6 years later, and vertebral fractures were determined
with x-rays at year
six. Women were also monitored for cognitive changes via several
questionnaires given
at different points during the study period.
Women with low BMD at baseline had up to 8% worse cognitive
scores at baseline and
up to 6% worse scores at follow-up than women with higher BMD
at baseline. Woman with
vertebral fractures also revealed lower test scores and a greater
overall risk of cognitive
decline than women without any fractures.
Exercise and dietary supplementation (calcium) are potential
options for women trying
to prevent bone loss following menopause. This study suggests
that preventing bone
loss might help prevent some of the mental declines normally
associated with aging.
For a comprehensive evaluation of your exercise, diet and lifestyle
needs as a woman,
schedule an appointment with your chiropractor. And for more
information about women's
health, go to http://www.chiroweb.com/find/tellmeabout/women.html.
Yaffe K, Browner W, Cauley J, et al. Association between bone
mineral density and cognitive
decline in older women. Journal of the American Geriatric Society,
1999: Vol. 47, pp1176-1182.
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