Joe O'Brien is a forty-four-year-old police officer from the Irish Catholic neighborhood of Charlestown, Massachusetts. A devoted husband, proud father of four children in their twenties, and respected officer, Joe begins experiencing bouts of disorganized thinking, uncharacteristic temper outbursts, and strange, involuntary movements. He initially attributes these episodes to the stress of his job, but as these symptoms worsen, he agrees to see a neurologist and is handed a diagnosis that will change his and his family's lives forever: Huntington's Disease. Huntington's is a lethal neurodegenerative disease with no treatment and no cure. Each of Joe's four children has a 50 percent chance of inheriting their father's disease, and a simple blood test can reveal their genetic fate. While watching her potential future in her father's escalating symptoms, twenty-one-year-old daughter Katie struggles with the questions this test imposes on her young adult life. Does she want to know? What

Joe O'Brien is a 44-year-old police officer, devoted husband, proud father of four adult children. Joe begins experiencing strange physical and emotional symptoms. The neurologist diagnoses Huntington's Disease. It is a neurodegenerative disease with no cure, and is genetic. As Joe's symptoms worsen, he struggles to maintain his identity and sense of purpose. Each family member must reexamine their values and relationships as they learn to lead lives not defined by fear, but instead, by love.

"From award-winning, New York Times bestselling author and neuroscientist Lisa Genova comes a powerful new novel that does for Huntington's Disease what her debut Still Alice did for Alzheimer's. Joe O'Brien is a forty-four-year-old police officer from the Irish Catholic neighborhood of Charlestown, Massachusetts. A devoted husband, proud father of four children in their twenties, and respected officer, Joe begins experiencing bouts of disorganized thinking, uncharacteristic temper outbursts, and strange, involuntary movements. He initially attributes these episodes to the stress of his job, but as these symptoms worsen, he agrees to see a neurologist and is handed a diagnosis that will change his and his family's lives forever: Huntington's Disease. Huntington's is a lethal neurodegenerative disease with no treatment and no cure. Each of Joe's four children has a 50 percent chance of inheriting their father's disease, and a simple blood test can reveal their genetic fate. While watchi