 More than 5 million Americans live with Alzheimer's disease today, and the number is expected to triple by the year 2050. Hi, I'm Diane Alexander, Executive Director of Women in Government. Alzheimer's is one of the most vexing scientific and medical challenges of our time, and we still have much to learn about it. But there's hope. America's biopharmaceutical research companies are dedicated to discovering and developing new medicines for patients, and they currently have 77 medicines in development for the treatment of Alzheimer's.