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Study shows 'brain function starts declining at 45'

By Sean Fraser     Jan 7, 2012 in Health
A report published by the British Medical journal states that mental reasoning, memory, and comprehension begin to deteriorate at 45 years old.
According to a article, researchers at the University College London sampled over 7,000 men and women ages 45 to 70 for a 10-year span, measuring their skills in memory, aural and visual comprehension and vocabulary. The study showed that in men aged 65-70, there was a 9.6% decline in mental reasoning while women suffered a decline of 7.4%. However, both men and women aged 45-49 showed a 3.6% decrease. These figures are important in determining when dementia treatments should be started, as the sooner they are begun the more effective they are, according to the researchers.
There are some experts who are calling for a wider sampling of people to get more comprehensive results. Dr. Anne Corbett and Dr. Simon Ridley of the Alzheimer's Society both stress the need to answer more questions, such as whether or not general practitioners would be able to diagnose such changes effectively in middle age patients, or if lifestyle choices affect the onset of dementia.
The Alzheimer's Association defines dementia as "a general term for a decline in mental ability severe enough to interfere with daily life." There are several symptoms, including memory loss, inability to perform everyday tasks, loss of focus and attention, impaired reasoning and judgement, and visual perception impairment.
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