"Perlmutter explains the potent interplay between intestinal microbes and the brain, describing how the microbiome develops from birth and evolves based on lifestyle choices, how it can become 'sick,' and how nurturing gut health through a few easy strategies can alter your brain's destiny for the better. With ... dietary recommendations and a ... program of six steps to improving gut ecology, [this book] opens the door to ... brain health potential"--Amazon.com.