Emilie Reas is community editor for PLOS Neuroscience and a postdoctoral fellow at UC San Diego. She currently studies how the brain changes with aging and disease. In addition to her tweets for @PLOSNeuro she is @etreas.
Of the many outstanding mysteries of neuroscience, the pathogenic origins of Alzheimer’s disease (AD) remain one of the most perplexing neurological puzzles. An estimated 5.7 million Americans are presently afflicted with the disease, which gradually