"Stephen Heywood was twenty-nine years old when he learned that he was dying of ALS - Lou Gehrig's disease. Almost overnight his older brother, Jamie, turned himself into a genetic engineer in a quixotic race to cure the incurable. His Brother's Keeper is a powerful account of their story, as they travel together to the edge of medicine." "The book brings home for all of us the hopes and fears of the new biology. In this narrative, Jonathan Weiner gives us a portrait of science and medicine today. We learn about gene therapy, stem cells, brain vaccines, and other novel treatments for such nerve-death diseases as ALS, Alzheimer's, and Parkinson's - diseases that afflict millions, and touch the lives of many more." It turns out that the author has a personal stake in the story as well. When he met the Heywood brothers, his own mother was dying of a rare nerve-death disease. The Heywoods' gene therapist offered to try to save her, too.

"This book is a guide to our lving, changing planet. We journey to the rim of a great meteor crater ... we travel back in time to 1930, in the icy heart of Greenland ... We journey to the outer reaches of our solar system, dive to a rock erupt from the heart of the earth to form new undersea mountains and a new ocean floor. Ulimately we will come to see this planet not as a hunk of stone in space but more like a living organism -- with its own internal dynamics, exchanging gases, healing itself, increasingly dependent on a new host creature -- man-- to shape its future."--Fly leaf.