Alzheimer's Disease is the most common form of dementia. The disease is characterised by the loss of synapses and neurons in the cerebral cortex and certain subcortical regions. In the last three years, the genetics of Alzheimer's Disease has made significant advances; in fact, one could argue more than in the previous two decades. This has resulted in the identification of nine new genes and perhaps more importantly the realization that new pathways could be involved in the pathogenesis of Alzheimer's. These new pathways are now legitimate targets for therapeutic intervention, which can...