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First signs of Alzheimer's may be physical rather than mental Group Health Center for Health Studies May 23, 2006 The first signs of dementia — including Alzheimer's disease — may be physical, rather than mental, according to a joint study between Group Health Cooperative and the University of Washington reported in the May 22 Archives of Internal Medicine. "Everyone had expected the earliest signs of dementia would be subtle cognitive changes," said Eric B. Larson, MD, MPH, director of Group Health Center for Health Studies. "We were surprised to find that physical changes can precede declines in thinking." What is considered a brain disease may be intimately connected to physical fitness, he added. In the study, the first indicators of future dementia appeared to be problems with walking and balance. A weak handgrip may be a later sign of the development of dementia in older people.
In a recent report, in the Annals of Internal Medicine in January 2006, some of these researchers found that when people exercised regularly, they were less likely to develop dementia, including Alzheimer's disease. The cause of this association was not clear, though. This newer study suggests a possible pathway: that regular exercise may help stave off dementia by improving and maintaining physical conditioning. "These results suggest that in aging, there's a close link between the mind and body," said Larson. "Physical and mental performance may go hand in hand, and anything you can do to improve one is likely to improve the other." If people notice that they are starting to decline physically, he said, reengaging in physical activity may help them to stop or slow this decline — and reduce their risk of early cognitive worsening. On the other hand, he said, it is still possible for people who have physical constraints, even paralysis, to stay mentally alert and cognitively fit. Other studies have suggested that staying busy with nonphysical leisure activities and learning new things may also help delay the onset of dementia. Also, "healthy body, healthy mind" is probably only part of the story, he added. Other elements likely include social support and positive mood. This is a modified news release from the Group Health Center for Health Studies
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