Chances are, you know someone with a neurological disease, whether it is Multiple Sclerosis, Parkinson's Disease, Alzheimer's, or ALS. Because the brain controls so much and is integral to our identity, the diseases that affect it are uniquely devastating—and yet, there is reason for hope. A professor of neurology at Harvard Medical School, Howard Weiner paints a picture of the discoveries, setbacks, and victories on the front lines of brain research. Weiner also shares the experiences of the brave patients and families who make cutting-edge clinical trials possible. "A masterful and rigorous rendering of the state of neurological disease research infused with a rationally defensible sense of hope."—Kirkus Reviews