Mayo Clinic Minute: Why early detection of Alzheimer’s disease matters

Early detection of diseases such as breast cancer is important, because treating tumors before they spread is key to eradicating the disease.  But what about Alzheimer's disease, which has no cure? It is worth getting diagnosed early if there's no way to stop it? Dr. Ronald Petersen, director of the Mayo Clinic Alzheimer's Disease Research Center, says yes.