Word: snowdons
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Much of this knowledge comes from a single, powerful piece of ongoing research: the aptly named Nun Study, of which Sisters Ada and Rosella are part. Since 1986, University of Kentucky scientist David Snowdon has been studying 678 School Sisters--painstakingly researching their personal and medical histories, testing them for cognitive function and even dissecting their brains after death. Over the years, as he explains in Aging with Grace (Bantam; $24.95), a moving, intensely personal account of his research that arrives in bookstores this week, Snowdon and his colleagues have teased out a series of intriguing--and quite revealing--links...
Scientists know that genes can predispose people to Alzheimer's disease. But as described in nearly three dozen scientific papers, Snowdon's study has shown, among other things, that a history of stroke and head trauma can boost your chances of coming down with debilitating symptoms of Alzheimer's later in life; and that a college education and an active intellectual life, on the other hand, may actually protect you from the effects of the disease...
Perhaps the most surprising result of the Nun Study, though, is the discovery that the way we express ourselves in language, even at an early age, can foretell how long we'll live and how vulnerable we'll be to Alzheimer's decades down the line. Indeed, Snowdon's latest finding, scheduled to be announced this week, reinforces that notion. After analyzing short autobiographies of almost 200 nuns, written when they first took holy orders, he found that the sisters who had expressed the most positive emotions in their writing as girls ended up living longest, and that those...
These findings, like many of Snowdon's earlier conclusions, will undoubtedly spark a lively debate. As laboratory scientists and clinicians are quick to point out, cause and effect are notoriously difficult to tease out of population studies like this one, and exactly what the emotion-Alzheimer's link means has yet to be established. But even hard-nosed lab scientists admit that the Nun Study has helped sharpen the focus of their research. The study has impressed the National Institutes of Health enough that it has provided $5 million in funding over the past decade and a half...
...Mary Aloysius, former dietitian at the Mankato, Minn., convent, has been giving the sisters there for the past 30 years: Eat a balanced diet, including plenty of beans and leafy green vegetables. The advice may be the same, but Mary Aloysius reports that ever since the nuns heard about Snowdon's folate findings, they have been crowding around the salad...