Sabbagh, a geriatric neurologist and clinician, has studied Alzheimer's syndrome for many years. Drawing on his experience in research and with patients, he explains Alzheimer's in a clear manner, while not oversimplifying the subject. He describes what Alzheimer's is and some methods for preventing it. Another section covers who is at risk. The third section evaluates many of the conflicting claims made for diets and supplements to prevent or slow the progress of Alzheimer's. Sabbagh ends with a list of the signs of the onset of the condition and suggestions for treatment and support, as well as a look at ongoing research. Annotation 2008 Book News, Inc., Portland, OR (booknews.com)