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What are the boundary zones between normal aging and Alzheimer's disease (AD)? Are many elderly people whom we regard as normal actually in the early stages of AD? Alzheimer's disease does not develop overnight; the early phases may last for years or even decades. Recently, clinical investigators have identified a transitional condition between normal aging and and very early Alzheimer's disease that they have called mild cognitive impairment, or MCI. This term typically refers to memory impairment beyond what one would expect in individuals of a given age whose other abilities to function in...

Widely regarded as the crown jewel of the Great Smoky Mountains, Mount Le Conte harbors the greatest concentration of notable geological features in all of the Smokies. This unique book tells the history of the mountain, offering visitors a greater appreciation of its scenic splendor.
Kenneth Wise and Ron Petersen combine their intimate knowledge of Le Conte with a wealth of scientific and historical information. Following introductory coverage of the mountain's geologic history and human exploration, they follow the six main trails up the mountain--Alum Cave, Bullhead, Rainbow Falls,...