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Sunday, December 28, 2014
Once
in a while, brain research dishes out a simple, practical way to run a
self-diagnostic test on your brain’s health. A recent study from Japanese researchers offers such a
test, and it’s simple enough that almost everyone can give it a try. Here’s
what you do: stand up, raise one leg in front of you bent at your knee, and try
to maintain your balance in that position for as long as you can. Do that twice
and record your time with a stopwatch both times.
According to the
study, people who aren’t able to stay balanced on one leg for longer than 20
seconds should consider further evaluation from a doctor. The reason is that
imbalance strongly correlates with the presence of tiny lesions, or “microbleeds”,
in the brain, which can be there even when you’re otherwise feeling healthy.
Over time these microbleeds can lead to serious issues such as stroke and
dementia.
The study assessed
1387 adults, average age 67, all of whom were in good overall health.
Everyone in the study performed the test twice and their best times were
recorded. The participants were then given an MRI brain scan to identify any
abnormalities in brain tissue.
The results showed
a straight line correlation between inability to balance for at least 20
seconds and the occurrence of microbleeds and other forms of tissue damage in
the brain. While only 10% of people who couldn’t hold balance for 20 seconds
showed no signs of microbleeds, 30% with two or more microbleeds had trouble
balancing. The same held true for another type of tissue damage called a “lacunar infarction lesion”
– less than 10% of those who couldn’t balance showed no lesions, but almost 35%
who failed the test had two or more lesions.
These results were
consistent even after other factors such as blood pressure, age, and arterial
health were controlled for.
Dr. Yasuharu Tabara
of the Center for Genomic Medicine, Kyoto University Graduate School of
Medicine, who led the study, commented:
“Our study found
that the ability to balance on one leg is an important test for brain health.
Individuals showing poor balance on one leg should receive increased attention,
as this may indicate an increased risk for brain disease and cognitive
decline.”
The researchers
also examined a possible link between the balancing test and cognitive ability
(such as thought processing speed and memory) and found that an inability to
hold balance for 20 seconds correlates with “reduced cognitive function”
independent of other factors.
The takeaway: try
the test, and if you can’t pass it, schedule a visit with your doctor. It
may help identify and prevent serious issues later on.
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