Friday, August 2, 2013

Being A Lifelong Bookworm May Keep You Sharp In Old Age

The findings, published online today in Neurology, suggest that reading books, writing and engaging in other similar brain-stimulating activities slows down cognitive decline in old age, independent of common age-related neurodegenerative diseases. In particular, people who participated in mentally stimulating activities over their lifetimes, both in young, middle and old age, had a slower rate of decline in memory and other mental capacities than those who did not.

Researchers used an array of tests to measure 294 people’s memory and thinking every year for six years years. Participants also answered a questionnaire about their reading and writing habits, from childhood to adulthood to advanced age. Following the participants’ deaths at an average age of 89, researchers examined their brains for evidence of the physical signs of dementia, such as lesions, plaques and tangles. Such brain abnormalities are most common in older people, causing them to experience memory lapses. They proliferate in the brains of people with Alzheimer’s disease, leading to memory and thinking impairments that can severely affect victims’ daily lives.

Reading gives our brains a workout because comprehending text requires more mental energy than, for example, processing an image on a television screen. Reading exercises our working memory, which actively processes and stores new information as it comes. Eventually, that information gets transferred into long-term memory, where our understanding of any given material deepens. Writing can be likened to practice: the more we rehearse the perfect squat, the better our form becomes, tightening all the right muscles. Writing helps us consolidate new information for the times we may need to recall it, which boosts our memory skills.


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