We are living in a time of significant scientific advancements allowing us to live longer. However, with longer lifespan, there is increased likelihood of age-related disorders such as Alzheimer’s disease (AD). The people living with AD and other dementia worldwide are growing very fast and the figures are expected to increase from 35.6 million in 2010 to 115.4 million by 2050 (Alzmer report). Research is probably more important now than in the past in the field of AD considering enormous burden on nation and individual families. However, there are great challenges associated with research because of difficulty establishing definite diagnosis of AD.