Can an active lifestyle ward off Alzheimer's? That was the focus of our guest's article in the Wall Street Journal. It's also the topic of her latest book Mind Thief: The Story of Alzheimer's.

Alzheimer’s lingers for years, with patients’ outward appearance unaffected while their cognitive functions fade away, and there is still no proven way to treat Alzheimer’s because its causes remain unknown. In her book, Han Yu examines over a century of research and controversy, presenting a comprehensive and engaging history of Alzheimer’s that demystifies efforts to understand the disease.

Han Yu is a professor in the Department of English at Kansas State University, where she teaches technical communication, science writing, and engineering writing.

Today we hear why she wrote the book, how an English professor wrote a book about science, and the importance of movement at all stages of life.