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Nuclear magnetic resonance (NMR) is having an enormous liTIpact on biomedical research both at the basic science and clinical levels. In order to appreciate the elegance and power of this technology a historical perspective is in order. In 1924 Pauli suggested that hydrogen nuclei might possess a magnetic IIlOlllent. This was in fact confinned by Rabbi in 1939 who demonstrated that a beam of hydrogen molecules in the presence of a magnetic field could be mutated by radio frequency fields resonating at the Iarmor frequency. 'Ihe first successful NMR experiments in condensed matter were independently conducted in late 1945 by Purcell, Torrey and PoUnd and by Bloch, Hansen and Packard. 'Ihe Pur...
Alzheimer's disease and dementia—which can begin in the 30s—are on the increase, and may soon overwhelm our health-care systems. Yet individuals can do much to educate themselves and learn how to minimize their risks. A prudent diet, lifestyle modifications, nutritional supplements, exercise and activities to stimulate the brain are some of the best ways to prevent or delay Alzheimer's disease. Use your brain or lose it! That's all easy to say, but how scientific are these admonitions and how do we change our habits, anyway? Vitamins, minerals and food supplements are discussed in relation to memory and other functions, as well as an overview of medications, the effects of wine, and the ...