The story of Dr. Mary T. Newport's discovery and use of medium-chain fatty acids, which act like alternative fuel in the Alzheimer's brain, to aid her beloved husband, Steve, created such a stir when the first edition was published in 2011 that a second edition was needed to reflect the most recent developments. Here Dr. Newport, a neonatal practitioner, brings the story of Steve's progress up to date and details the most recent research on a variety of topics, including possible causes of Alzheimer's and how infection, inflammation, and genetic makeup may affect an individual's response to fatty acid therapy. She also covers the latest clinical trials aimed at removing beta-amyloid that accumulates in the Alzheimer's brain.